WO2015059364A1 - Procédé d'installation et de maintenance d'un dispositif récupérant l'énergie cinétique de l'eau, et dispositif récupérant l'énergie cinétique de l'eau - Google Patents

Procédé d'installation et de maintenance d'un dispositif récupérant l'énergie cinétique de l'eau, et dispositif récupérant l'énergie cinétique de l'eau Download PDF

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Publication number
WO2015059364A1
WO2015059364A1 PCT/FI2014/050806 FI2014050806W WO2015059364A1 WO 2015059364 A1 WO2015059364 A1 WO 2015059364A1 FI 2014050806 W FI2014050806 W FI 2014050806W WO 2015059364 A1 WO2015059364 A1 WO 2015059364A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
compartments
filling
air
soft
Prior art date
Application number
PCT/FI2014/050806
Other languages
English (en)
Inventor
Rauno Koivusaari
Yrjö TUOKKOLA
Arvo JÄRVINEN
John Liljelund
Matti Vuorinen
Erkki Kasanen
Jorma Savolainen
Pekka Miettinen
Original Assignee
Aw-Energy Oy
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
Priority claimed from US14/061,299 external-priority patent/US9551125B2/en
Application filed by Aw-Energy Oy filed Critical Aw-Energy Oy
Priority to EP14856056.8A priority Critical patent/EP3060723A4/fr
Publication of WO2015059364A1 publication Critical patent/WO2015059364A1/fr

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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
    • F03B13/26—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 tide energy
    • 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
    • F03B13/1805—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 is hinged to the rem
    • F03B13/181—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 is hinged to the rem for limited rotation
    • F03B13/182—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 is hinged to the rem for limited rotation with a to-and-fro movement
    • 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
    • F05B2240/90—Mounting on supporting structures or systems
    • F05B2240/97—Mounting on supporting structures or systems on a submerged structure
    • 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
    • F05B2260/02—Transport, e.g. specific adaptations or devices for conveyance
    • 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
    • F05B2270/00—Control
    • F05B2270/10—Purpose of the control system
    • F05B2270/18—Purpose of the control system to control buoyancy
    • 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 present invention relates to a method for installing and servicing an apparatus recovering the kinetic energy of water and an apparatus for recovering the kinetic energy of water.
  • the apparatus according to the invention is suited very well for instance for an apparatus for recovering wave energy or tidal energy of seawater.
  • the recovered energy is further converted for instance to electric energy and/or fresh water.
  • the apparatus for recovering wave energy is dealt with a more precise way.
  • each recovery unit is usually situated separately on its own base on the bottom of the water basin, such as the bottom of sea.
  • the base for each recovery unit has been made ready on the sea bottom before the installation of the recovery unit.
  • the manufacture of that kind of the base at the sea bottom is slow, requires a lot of preparations, contains a lot of expensive diving labor, and needs a lot of various fixtures.
  • that kind of heavy fixtures is usually not easily available for just the time it is needed. For that reason the prior art solutions suffer from extensive installation costs and a slow installation work.
  • one problem is the inconvenience involved with the maintenance or servicing.
  • the maintenance work requires also a lot of preparation work and heavy vessel and crane fixtures in order to lift the recovery unit onto the surface of the water and to perform the service needed. Also after the service works the same heavy fixtures are needed again. This is slow and makes the service works very expensive.
  • An object of the present invention is to eliminate the drawbacks described above and to achieve an inexpensive, easy and a fast method for installing and servicing an apparatus recovering the kinetic energy of water. Likewise the object of the present invention is to achieve an apparatus for recovering the kinetic energy of water.
  • a method for installing and servicing an apparatus recovering the kinetic energy of water in which method the apparatus is installed at the bottom of a water basin, such as a sea, the method comprising at least the following steps: creating an apparatus module comprising at least a floating body equipped with a plurality of hard compartments enduring higher pressure and a plurality of soft compartments enduring lower pressure than the hard compartments, wherein said compartments to be filled with gas, such as air, and with water; and two or more recovery units for recovering kinetic energy of water, the recovery units being attached to the body; transporting the apparatus module to its production site; and descending the apparatus module onto the bottom of the water basin by allowing the water run at first into the soft compartments starting at the first end of the apparatus module, and after essentially all the soft compartments are filled with water, allowing the water run into the hard compartments starting at the first end of the apparatus module so that the body descends onto the bottom of a water basin the first end ahead and draws at the same time the
  • an apparatus for recovering the kinetic energy of water is disclosed, which apparatus is installed at the bottom of a water basin, such as a sea, the apparatus comprising at least as a base acting body equipped with a plurality of hard compartments enduring higher pressure and a plurality of soft compartments enduring lower pressure than the hard compartments, wherein all the compartments to be filled with gas, such as air, and with water; and two or more recovery units for recovering kinetic energy of water, the recovery units being attached to the body forming an apparatus module.
  • the solution of the invention has the advantage that by using the solution for instance the apparatus for recovering wave energy of seawater can be installed and serviced more easily, faster and with smaller costs than with solutions according to prior art.
  • Hard compartments that may be used are pressure vessels and relatively costly but using soft compartments in addition to hard compartments the costs can be reduced because the manufacturing and material costs of the soft compartments are much smaller than those of hard compartments.
  • the heavy vessels with big cranes are not needed, but the apparatus can be installed and lifted for servicing or repairing by the help of small fixtures, for example by the help of a small trawler. Likewise the preparation work for the installation and servicing or repairing is much faster and easier in the solution according to the invention.
  • One advantage is also the fact that in easy cases the servicing or repairing can be made at sea, only by lifting the apparatus onto the surface of the water and making the work on the surface. The lifting of the apparatus takes only about one hour. After the servicing or repairing the apparatus is descended back onto to the sea bottom.
  • one advantage is that because the body of the apparatus is made of concrete it does not rust.
  • One advantage is also the fact that a heavy concrete body protects the components of the apparatus from water and external elements of danger.
  • a further advantage is that thanks to the modular structure separate apparatuses are easy to couple together for a big power plant, and the servicing can be made for instance so that a new or newly serviced apparatus module is brought to the production site at the sea and the old one is replaced with the new one and is towed to the dockyard for servicing or repairing. The exchange of the apparatus module is fast to do and does not require heavy fixtures.
  • One more advantage is that it is easy to integrate various measuring instruments into the body of the apparatus module.
  • Fig. 1 presents an apparatus module according to an embodiment of the invention seen obliquely in top view.
  • Fig. 2 presents diagrammatically and simplified a body of an apparatus module according to an embodiment of the invention the cover removed and seen in top view.
  • Fig. 3 presents diagrammatically and simplified an apparatus module according to an embodiment of the invention seen in side view and in a lengthwise intersection, and cut in the middle.
  • FIG. 4 presents diagrammatically and simplified an apparatus module according to an embodiment of the invention seen from the end and in a cross section.
  • FIG. 4a presents diagrammatically and simplified a body of an apparatus module according to another embodiment of the invention the cover removed and seen in top view.
  • Fig. 4b presents diagrammatically and simplified a cross section A-A of hard floating compartments of the body of an apparatus module according to the invention seen in side view.
  • Fig. 5 presents an apparatus module according to an embodiment of the invention seen in side view at the beginning of an installation phase.
  • Fig. 6 presents an apparatus module according to Fig. 5 seen in side view during the installation phase.
  • Fig. 7 presents an apparatus module according to Fig. 5 seen in side view installed on the bottom of the water basin.
  • Fig. 8 presents an apparatus module according to Fig. 5 seen in side view on the bottom of the water basin and at the beginning of the lifting phase.
  • Fig. 9 presents an apparatus module according to Fig. 5 seen in side view during the lifting phase.
  • Fig. 10 presents an apparatus module according to Fig. 5 seen in side view after the lifting and ready for towing.
  • Fig. 1 presents an apparatus module 1 according to the invention for recovering kinetic energy of seawater.
  • the apparatus module 1 according to the example is situated in a so-called intermediate water area of the water basin, and is capable to recover kinetic energy of the waves of the sea and convert the kinetic energy into electric energy.
  • the apparatus module 1 is capable to make fresh water from the seawater.
  • the apparatus module 1 comprises at least a body 2 that functions as a base, two or more onto the body 2 attached recovery units 3 for recovering wave energy, collecting means 3c (shown in Fig. 3) for collecting the energy recovered by the recovery units 3, a cable 4 for transferring the collected energy to further use, and a cable trough 5 equipped with a protective cover for joining all the recovery units 3 of the apparatus module
  • Each recovery unit 3 comprises at least a plate like wing element 3a that is hinged at its lower edge onto the body 2 of the apparatus module 1, and the recovering means 3 b of the wave energy.
  • the wing element 3 a is arranged to make reciprocating motion caused by the kinetic energy of the waves, and the recovered energy is either saved into the energy storages situated in the body 2 or transferred through the collecting means 3c and cable 4 to the use of the next unit that can be for instance a collecting station situated on shore.
  • the fresh water produced by the apparatus module 1 can be stored in containers situated in the body 2 of the apparatus module 1, and delivered time to time for further use.
  • Fig. 2 presents the body 2 of the apparatus module 1 according to the invention seen in top view. In the figure the cover of the body 2 has been removed.
  • the body 2 of the apparatus module 1 according to the invention seen in top view. In the figure the cover of the body 2 has been removed.
  • the body 2 is made of concrete. It is either assembled of prefabricated cavity slabs or made by casting.
  • the body 2 is comprised of a group of floating compartments 2a, 2d that are arranged one after the other in three parallel rows.
  • the floating compartments 2a are stronger, so-called hard compartments that stand a higher pressure, for example at least about a pressure of 3 Bars and are situated in a longitudinal direction essentially on both sides of the body 2, whereas the compartments 2d are weaker, so-called soft compartments that stand only a lower pressure, for example a pressure of about 1, 2 Bars and are situated in a longitudinal direction essentially in the middle of the body 2.
  • the hard compartments 2a are essentially mutually one after the other in the same row and likewise the soft compartments 2d are essentially mutually one after the other in the same row, though there may be other compartments between the soft compartments 2d in the same row.
  • the embodiment of Fig. 2 comprises two rows of hard compartments 2a and one row of soft compartments 2d but the number of rows can also be different. For example there can be also two rows of soft compartments 2d as is presented later diagrammatically in Fig. 4a.
  • the body 2 has also instrument and machinery chambers 2b that are kept dry, and valve compartments 2c at both ends of the body 2.
  • valve compartments 2c there are filling and discharge valves 6 for air and filling and discharge valves 7 for water.
  • Upper pipes 8 for water filling and air discharging, and lower pipes 9 for air filling and water discharging have been installed to go through the separation walls 2e of the compartments 2a, 2c and 2d in order to allow water and air to run into all the floating compartments 2a, 2d and valve compartments 2c.
  • the ends of the body 2 have been reinforced in order to stand the body 2 hitting the sea bottom 12 when the apparatus module 1 is descended into the bottom of the water basin.
  • the apparatus module 1 remains steady on the sea bottom 12 when the floating compartments 2a, 2d are filled with water.
  • floating compartments 2a, 2d are big enough to allow the body 2 to float on the surface of the water when the floating compartments 2a, 2d are filled with air.
  • FIG. 3 and 4 the apparatus according to the invention is shown separately from its neighborhood.
  • the apparatus is shown in a lengthwise intersection along the line A-A in Fig. 2, and cut in the middle so that only two recovery units 3 are seen.
  • the filling and discharge valves 6 for air and the filling and discharge valves 7 for water are seen at the both ends of the body 2.
  • the apparatus according to the invention is shown in a cross section.
  • Fig. 4a presents diagrammatically and simplified a body 2 of an apparatus module according to another embodiment of the invention the cover removed and seen in top view.
  • this embodiment there one row of hard compartments 2a on each longitudinal side of the body 2 and two parallel rows of soft compartments 2d in the middle of the body between the rows of the hard compartments 2a.
  • the body in Fig. 4a comprises separate filling valves 7a and discharge valves 7b for water at the first end of the apparatus module 1, and separate filling valves 6a and discharge valves 6b for air at the second end of the apparatus module 1.
  • the valve arrangement can, however, also be different.
  • the internal filling valves 6c, 7c can also be replaced by additional filling valves 6a, 7a at the ends of the apparatus module 1.
  • every row of the floating compartments 2a, 2d can have its own filling valve 6a for air and own filling valve 7a for water.
  • Fig. 4b presents diagrammatically and simplified a cross section B-B of hard floating compartments 2a of the body 2 of the apparatus module 1 according to the invention seen in side view.
  • the cross section of the soft compartments 2d of the body 2 in side view is essentially similar to the cross section B-B of hard compartments 2a, and therefore reference numbers 2d are also included in Fig. 4b.
  • the upper pipes 8 and lower pipes 9 can be equipped with a back-pressure valve to allow the water or air to flow only to one direction when filling and to another direction when discharging.
  • the upper pipes 8 are near the ceiling of the compartments 2a, 2d and the lower pipes 9 are near the bottom of the compartments 2a, 2d.
  • Figs. 5-10 show the steps of the method according to the invention for installing the apparatus module 1 recovering kinetic energy from the seawater into its production site, and for lifting the apparatus module 1 back onto the surface of the water for instance for servicing or repairing.
  • the apparatus module 1 is intended to be descended into its production site onto the sea bottom 12 at the area situated in a so-called intermediate water area of the water basin.
  • the intermediate water area refers here to the same area as in the WO publication No. WO2004097212, i.e. to the water basin area, generally ocean area in the depth range of the so-called breaker-line and shallow waters, extending to the wavelength of 0,5.
  • the relation of the water depth to the principally prevailing wavelengths is between 1/2 - 1/20.
  • the apparatus module 1 pre-assembled in the dockyard or onshore is towed floating and the wing elements 3a of the recovery units 3 turned down to a transporting position to the installation site that is marked with buoys that support the free ends of the anchor chains 10 that are anchored at the sea bottom 12.
  • the towing can be done with a small trawler or boat.
  • the apparatus module 1 When the apparatus module 1 is floating above its production site it is fastened with its both ends into the free ends of the anchor chains 10 and the chains 10 are tightened.
  • the descending of the apparatus module 1 from the surface 1 1 onto the sea bottom 12 can be done in many various ways, but the main idea is to keep the apparatus module 1 steady at the sea bottom 12 by the help of its own mass and the mass of the water filled into the compartments 2a, 2c and 2d, and making the apparatus module 1 floating by the help of gas, such like air that is blown to the compartments 2a, 2c and 2d to replace the water.
  • One way to descend the apparatus module 1 onto the sea bottom 12 is to open the filling valves 7, 7a for water and to stretch the apparatus module 1 towards the sea bottom 12 with the anchor chains 10. During the stretching water runs into the compartments 2a, 2c and 2d, and the apparatus module 1 begins to descend more and more easily towards the sea bottom 12.
  • FIG. 6 Another way is shown in Fig. 6.
  • the method is conducted so that at the beginning the filling valves 7 or 7a for water at the first end of the apparatus module 1 are opened, and the soft compartments 2d of the body 2 are allowed to be filled with water starting from the first end of the apparatus module 1.
  • the filling of the soft compartments 2d is continued until all the soft compartments 2d one after the other are filled with water.
  • the first soft compartments 2d at the first end of the body 2 are filled first with water.
  • the filling water begins to flow through the upper pipes 8 to the next soft compartments 2d in each row of soft compartments 2d.
  • the filling of water continues in this way until all the soft compartments 2d are full of water.
  • the total volumes of the soft compartments 2d and the hard compartments 2a are arranged so that the apparatus module 1 is still floating when the soft compartments 2d are full of water and the hard compartments 2a are full of air.
  • the filling of hard compartments 2a with water can begin.
  • the filling of the hard compartments 2a is essentially similar to the filling of the soft compartments 2d.
  • the filling can be performed with an external filling valve 7 or 7a similar to the filling valve 7a of the soft compartments 2d, or like shown in Fig. 4a with an internal filling valve 7c between the first soft compartments 2d and the first hard compartments 2a.
  • the internal filling valves 7c can be automatic and arranged to open when a pressure grows sufficiently high, or the internal filling valves 7c likewise the external filling and discharge valves 7, 7a, 7b can be manually operated either directly so that the a diver opens and closes them manually or they can be operated with a remote control.
  • the first hard compartments 2a begin to fill with water
  • the first end of the apparatus module 1 begins to descent slowly onto the sea bottom 12 as is shown in Fig. 6, and when about a half of the hard compartments 2a are full of water the first end reaches the sea bottom 12.
  • the apparatus module 1 descends completely onto the sea bottom 12 as is shown in Fig. 7.
  • the hard compartment 2a stands the water pressure and therefore it does not collapse in the water though it still has air inside it. That is why the second end of the body does not crash into the sea bottom 12 but descends slowly and controlled onto the sea bottom 12. At the sea bottom 12 the rest of the hard compartments 2a at the second end of the body 2 are allowed to be filled with water in order to achieve a sufficient gravitation to keep the apparatus module 1 at the sea bottom 12.
  • the filling and discharge valves 6 or discharge valves 6b for air are opened at the second end of the apparatus module 1 in order to allow the air come out from the compartments 2a, 2c and 2d.
  • the anchor chains 10 are used to guide the apparatus module 1 to descend precisely onto its production location.
  • all valves 6, 6b, 7 and 7a are closed and the apparatus module 1 is fastened steadily at its production site by the aid of the anchor chains 10.
  • Fig. 8 shows the initial phase of the lifting of the apparatus module 1.
  • the wing elements 3a of the recovery units 3 are turned down to their transporting position and a compressor 13a situated in the trawler 13 is coupled by the help of an air hose 14 into the filling and discharge valve 6 or the filling valve 6a for air located at the second end of the apparatus module 1.
  • the filling and discharge valve 7 or discharge valve 7b for air located at the first end of the apparatus module 1 are opened in order to allow the water come out from the compartments 2a, 2c and 2d.
  • the air filling is started at the second end of the body 2 and air is filled at first into the hard compartments 2a of the body 2, one after the other in the same row and in all rows until about a half of each row of hard compartments 2a are filled with air, and the second end begins to lift upwards.
  • the apparatus module 1 is at the sea bottom 12 the air pressure has to be higher than on the surface of water in order to push the water out of the hard compartments 2a.
  • the air pressure of about 2 Bars, i.e. overpressure of 1 Bar is sufficient for that purpose.
  • the hard compartments 2a stand the overpressure mentioned they keep they forms and do not expand or balloon during the lifting, and therefore they do not cause additional buoyancy. That makes it possible that the lifting end does not crash into the surface but lifts slowly towards the surface.
  • the soft compartments 2d can also be filled with air through the external filling valves 6 or 6a for air but only when the apparatus module 1 is floating in the vicinity of the surface.
  • the internal filling valves 6c can be automatic and arranged to open when the air pressure grows sufficiently high, or the internal filling valves 6c, likewise the external filling and discharge valves 6, 6a, 6b can be manually operated either directly so that the a diver opens and closes them manually or they can be operated with a remote control.
  • the servicing can be made also on the production site when the body 2 is floating on the surface of the water, if the tasks required make it possible.
  • it can be done so that when the trawler 13 comes to fetch the apparatus module 1 for servicing it brings at the same time a new or a newly serviced apparatus module 1 that is installed to replace the apparatus module 1 that has been lifted up for the service or repairing. In this way the operation of the wave energy power plant comprised of a plurality of apparatus modules 1 suffers extremely little during the service break of an apparatus module 1.
  • the apparatus module can differ from the apparatus module described above.
  • the apparatus module may have a different number of wave energy recovery units than is presented in the example above.
  • the number of wave energy recovery units can be 2, 4, 5 or 6 or even more.
  • the apparatus module can be also made for recovering tidal energy, and the apparatus module can be sunk also into a deeper water than a so called intermediate water.

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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)
  • General Life Sciences & Earth Sciences (AREA)
  • Oceanography (AREA)
  • Revetment (AREA)

Abstract

L'invention concerne un procédé d'installation et de maintenance d'un module de dispositif récupérant l'énergie cinétique de l'eau, ainsi que le module de dispositif. Ce module de dispositif (1) comportant des unités de récupération d'énergie houlomotrice (3) est descendu au fond de la mer et maintenu en place sur le fond marin par sa propre masse et par la masse de l'eau remplissant une pluralité de compartiments souples et durs (2a, 2d) et des compartiments de vannes (2c) dans le corps (2) du module de dispositif. De façon correspondante, le module de dispositif (1) est soulevé à la surface de l'eau et amené à flotter au moyen d'air insufflé dans la pluralité de compartiments souples et durs (2a, 2d) et dans les compartiments de vannes (2c) afin de remplacer l'eau.
PCT/FI2014/050806 2013-10-23 2014-10-23 Procédé d'installation et de maintenance d'un dispositif récupérant l'énergie cinétique de l'eau, et dispositif récupérant l'énergie cinétique de l'eau WO2015059364A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14856056.8A EP3060723A4 (fr) 2013-10-23 2014-10-23 Procédé d'installation et de maintenance d'un dispositif récupérant l'énergie cinétique de l'eau, et dispositif récupérant l'énergie cinétique de l'eau

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14/061,299 US9551125B2 (en) 2009-03-26 2013-10-23 Method for installing and servicing an apparatus recovering the kinetic energy of water, and an apparatus recovering the kinetic energy of water
US14/061,299 2013-10-23

Publications (1)

Publication Number Publication Date
WO2015059364A1 true WO2015059364A1 (fr) 2015-04-30

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PCT/FI2014/050806 WO2015059364A1 (fr) 2013-10-23 2014-10-23 Procédé d'installation et de maintenance d'un dispositif récupérant l'énergie cinétique de l'eau, et dispositif récupérant l'énergie cinétique de l'eau

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EP (1) EP3060723A4 (fr)
WO (1) WO2015059364A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004097212A1 (fr) 2003-04-25 2004-11-11 Aw-Energy Oy Installation de production
WO2009124344A1 (fr) * 2008-04-11 2009-10-15 Australian Sustainable Energy Corporation Système et procédé de déploiement et de retrait d'un convertisseur d'énergie houlomotrice
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WO2010109074A1 (fr) * 2009-03-26 2010-09-30 Aw-Energy Oy Procédé d'installation et de maintenance d'un dispositif récupérant l'énergie cinétique de l'eau, et dispositif récupérant l'énergie cinétique de l'eau
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