EP2406489A1 - Systeme et procede d'immersion d'une turbomachine hydraulique - Google Patents
Systeme et procede d'immersion d'une turbomachine hydrauliqueInfo
- Publication number
- EP2406489A1 EP2406489A1 EP10715927A EP10715927A EP2406489A1 EP 2406489 A1 EP2406489 A1 EP 2406489A1 EP 10715927 A EP10715927 A EP 10715927A EP 10715927 A EP10715927 A EP 10715927A EP 2406489 A1 EP2406489 A1 EP 2406489A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- turbomachine
- carriage
- assembly
- ship
- seat structure
- 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- Withdrawn
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
- F03B17/00—Other machines or engines
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B17/02—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto
-
- 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
- F03B13/10—Submerged units incorporating electric generators or motors
-
- 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
- Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
Definitions
- the present invention relates to a method and a system for immersing a hydraulic turbomachine at the bottom of the water.
- an energy source that is currently little exploited corresponds to naturally occurring water currents on the planet: high-water currents, tidal currents, strait currents, and estuary, river or river currents.
- One of the key points for success undue ⁇ dustrial hydraulic turbomachinery holds the installation processes and systems. They should first allow installing hydraulic turbomachinery on sites attei ⁇ Gnant possibly great depths (up to 200 meters) safely. Then, it is essential to limit the cost of installing the machines. However, in many systems currently used, this cost can greatly exceed the manufacturing costs of the machines.
- IMR ships also have a large surface area. bridge. These ships also offer all the carrying capacity and logistical support. But they are not available and involve very high costs of use (handling, transport).
- Patent applications WO2008125285 and WO2008125286, propose to use a floating platform speci ⁇ fic multihull (catamaran or trimaran possibly) self-propelled or towed, with its center in a working well with dimensions sufficient to allow passage of a large flow turbine axial.
- the seating structure of the turbine is fixed under the platform.
- the installation comprises several stages: a pre ⁇ installation, the vessel being at the quayside port of departure, the turbine assembly + sitting on the vessel, and a file with the ship to overhang the installation site selected , on the seabed or fluvial bottom of the previous set from traction lines (cables, ropes, chains driven by winches fixed on the ship).
- This solution has several disadvantages:
- An object of an embodiment of the present invention is to provide a method and a system for immersing a hydraulic turbine engine at the bottom of the water which makes it possible to obtain a reasonable cost of installation with regard to the cost of manufacture of the machine itself.
- An object of an embodiment of the present invention is to provide a quick installation without risk and does not require the presence of divers or large gear.
- An object of an embodiment of the present invention is to provide an installation that can use non-specific current vessels.
- An object of an embodiment of the present invention is to provide an installation that allows the installation of hydraulic turbomachines on sites up to 200 meters deep.
- the present invention provides for selecting as a turbomachine a turbomachine with transverse flow of elongated form. It will be shown that such transverse flow turbomachines are particularly suitable for a simple assembly and immersion mode that does not require a specific vessel.
- an embodiment of the present invention provides a method of immersing a hydraulic turbomachine comprising the following steps: providing an assembly comprising an elongated transverse flow turbomachine; lay said set on a carriage; arranging the carriage on the deck of a ship, the lower end of the turbomachine being turned towards the stern of the ship, the upper end being connected by a pull line to a winch secured to the ship; raise the carriage and said assembly vertically above the stern of the ship; detaching said assembly from the carriage; and let down said assembly towards the bottom by retaining it by means of said pulling line.
- said assembly comprises a seat structure integral with the lower end of the turbomachine.
- the turbomachine is fixed to this carriage by removable fasteners.
- the seat structure comprises foldable arms, and the method further comprises, once the turbomachine down to the bottom, the steps of: unfolding the arms; and adjust the heights of their fulcrums on the bottom.
- An embodiment of the present invention provides an immersion system of a hydraulic turbomachine comprising: an assembly comprising an elongated transverse flow turbomachine; a carriage adapted to receive said assembly in supine position; a vessel provided with a winch adapted to carry the carriage on its deck, the lower side of the turbomachine being turned towards the stern of the ship, the upper side being connected by a pull line to the winch; and jacks for raising the carriage and said assembly at right angles to the stern.
- said assembly comprises a seat structure integral with the lower end of the turbomachine.
- the vessel is provided with a dynamic positioning system, and emission means are connected to the bottom of the turbomachine or the seat structure.
- the seat structure comprises a raft integral with foldable arms, each arm being associated with one or more cylinders to ensure its unfolding and adjustment, the turbomachine being connected to the ship during its positioning by electric cables to operate the various cylinders.
- the traction line is connected to the top of a holding structure of the turbomachine.
- the pull line is connected to the turbomachine by the interme diary ⁇ of electromagnets.
- the seat structure comprises a raft on which is mounted a pivoting plate about a vertical axis, the turbomachine being connected to the pivot plate.
- FIG. 1 shows an example single column turbomachine apparatus adapted for immersion according to an embodiment of the present invention
- FIG. 2 represents the turbomachine of FIG. 1 in which the seat is in the unfolded position
- FIG. 3 represents an example of twin column transverse flow turbomachine adapted to an installation according to one embodiment of the present invention
- Figures 4A to 4G show steps of immer sion ⁇ an elongated turbomachine according to an embodiment of the present invention.
- Figures 1 and 2 show an example of turboma ⁇ china transverse flux adapted to a simple immersion system.
- This turbomachine of the type described in French Patent No. 04/50209 (B6412 - Patent 1), is associated with a holding structure of the type described in the patent application.
- French No. 05/50420 (B6869 - patent 2) and is provided with a seat of the type described in the unpublished French patent application No. 08/55593 (B9030 - patent 4).
- This turbomachine includes three turbine wings V 1, 2 and 3 attached to the same shaft 5 which actuates a genera ⁇ trice 7. All these turbines the generator is surrounded by a supporting structure comprising poles 10 connected by hoops 11 bearing bearings maintaining the axis 5 between two turbomachines.
- the various elements of the holding structure 10, 11 are associated soli ⁇ with each other and with a seat 20 so as to be lifted in one piece from the top by driving the turbomachine and the seat 20
- This seat 20 comprises a raft 21 on which is mounted the holding structure 10, 11 and to which are fixed four foldable arms 22, 23, 24, 25 shown in the folded position.
- each of the arms 22 to 25 also carries a foundation system, for example a dead body 26.
- Each of the arm is foldable at an articulated ⁇ 28 to take in the installed state, the position illustrated in Figure 2.
- Each of the carcass 26 is linked to its arms by means of a jacking system 29 for to adjust it in height, to ensure the horizontality of the raft when the machine is immersed and put in place.
- FIG. 3 shows, on a seat of the same type as that illustrated in relation to FIGS. 1 and 2, a structure with two twin columns 31, 32.
- the shaft of each of these two columns is coupled to a generator.
- the outputs of the generators are added electrically, or the two shafts are coupled to the shaft of a common generator, which they contribute to driving.
- the two twin columns are mounted inside a holding structure 34 comprising parts 35 forming a hydrodynamic fairing, so that the structure is automatically oriented in the direction of the current, it being understood that all of the two columns and the fairing is connected to a plate 36 mounted in axial rotation on the raft 21.
- 1 to 3 are only examples of structures selected here to be immersed in a particularly simple way.
- this seat may comprise a seat whose diameter is not too large relative to the average diameter of the turbo-machine part proper (this diameter may be reduced, or because, as in the examples shown, the seat may be take a folded position, or because, founded ⁇ mentally, this seat has a limited diameter, which may be possible because of its large mass, or the selec- tion of particularly selected systems to ensure the anchoring of the turbomachine - for example suction anchors);
- each turbine element may have a height of 2 to 5 meters, and the holding structure may comprise hoops 11, also of a diameter of 2 to 5 meters, in the case where these values are rather close to 5 meters, we obtain for a set with three turbine elements and a generator, a height
- the seating structure will then have a diameter of about 8 to 10 meters, the feet having, like the whole of the column, a height of the order of 20 meters.
- central death may have a weight of the order of 10 to 100 tons, for example 50 tons, and each of the lateral dead bodies arranged at the end of the arms 22 to 25 may have a weight of several tons, for example 2 to 10 tons; so, commonly, the whole structure will have a weight between 150 e 500 tons).
- FIG. 4A shows an elongate transverse flow turbomachine 40, comprising a turbine column 41, and a seat structure 42.
- This seat structure 42 preferably comprises, as indicated previously, a raft and arms collapsible, not shown.
- the turbomachine is lying on a trolley 43 disposed on the deck of a ship 44.
- ships 44 comprising a clear deck over a length of 25 to 50 meters exist in a current manner.
- These may be conventional ships called Offshore Support Vessels (Offshore Support Vessels) which have been designed and manufactured for offshore oil exploration (towing, refueling, anchor lifting, etc.). As we As will be seen, these vessels do not have to be equipped with lifting gear and can be of modest size.
- the deck of the ship is equipped with a winch 45 whose traction line 46 is connected to the upper part of the turbo-machine.
- This pulling line 46 is also shown in FIG. 1 and its connection to the upper part of the turbomachine is carried out by any known means.
- the pull line 46 is connected to a plurality of traction line pieces 47 each of which is connected to a portion of the upper portion.
- the connection can for example be provided by electromagnets and is then simply removable. Although this is not repre ⁇ sented in addition to the traction line 46 electrical cables are provided to secure proper function implementation. These electric cables are used to power the electromagnets fixation that just mentioned. They are also used to power various actuators or solenoids provisioncexcellent ⁇ res for the implementation of the system.
- jacks for lowering the arms 22 to 25, electromagnets for locking these arms in the unfolded position, and jacks 29 which are used for adjusting the height of each of the arms. once the arms unfolded, so as to ensure the horizontality of the structure in place. It will also be necessary to provide electrical connections to various sensors, for example horizontality detection sensors, and position determination sensors or transmitters.
- the operation of setting up the turbomachine on the carriage can be performed while the carriage is on the ground, for example in a shed with a crane. Then only, the carriage carrying the turbomachine is brought on the deck of the ship. Although this is not shown, it will be clear that various means of mooring and protection of the truck and the turbine engine on the deck of the ship can be provided.
- FIG. 4B the carriage is shown resting against tilting stops 48.
- the rear part of the carriage is provided with means 47, for example hubs, capable of tible to cooperate with these tilting stops 48 disposed on the side of the stern of the ship.
- means 47 for example hubs
- the location 50 to which we want to set up the turbomachine.
- the carriage, bearing against the stops 48 is straightened by the use of one or more jacks 51 integral with the carriage or the deck of the ship.
- the turbomachine 40 is retained on the carriage by the traction line 46 and also, preferably, by removable fasteners 52.
- FIG. 4D illustrates the end of the raising step, in which the machine is substantially vertical, and still maintained by the fasteners 52 and the traction line 46.
- FIG. 4E The beginning of the descent of the turbomachine is illustrated in FIG. 4E.
- a system of pulleys 54 integral with the carriage 43 ensures the guidance of the traction line during the descent.
- the turbomachine is placed in position above the target location 50 and various installation operations are performed, including, for example, the unfolding of the arms and their blocking.
- the turbomachine is in contact with the bottom and various installation operations are carried out, including for example the adjustment of horizontality.
- the turbomachine is then released from its installation pull line.
- the vessel 44 is equipped with a dynamic positioning system, for example of the GPS type, which are equipped Today! ⁇ hui many vessels offshore support, to ensure that the turbine engine 40 is positioned above the target 50 and the rest during his descent.
- a dynamic positioning system for example of the GPS type, which are equipped Today! ⁇ hui many vessels offshore support, to ensure that the turbine engine 40 is positioned above the target 50 and the rest during his descent.
- Such computer-controlled dynamic positioning systems make it possible to maintain the position of the ship by using the propellers and bow thrusters of the ship.
- Various onboard sensors are used to provide information to the computer about the position of the ship, and the direction of the environmental forces affecting this position. These systems are currently sufficient ⁇ ciently accurate for that we can also consider, if one wants to go up the turbomachine, back down a line of traction and properly positioned to catch a gripper system such as a ring disposed top of the turbomachine.
- the method and system according to the present invention apply to transverse flow turbomachines, the position in rotation with respect to a vertical axis is irrelevant, both in the case of a turbomachine single-column only in the case of a twin-column turbine engine provided with orientation fairing and pivotally mounted about a vertical axis.
- FIG 4A there is shown the forward carriage on the boat, and in Figure 4B the carriage in tilting position.
- the seat is too large, in particular ⁇ in the case of a fixed seat (not foldable), can be positioned permanently in the truck rear position such as that of Figure 4B, so that the seat can overflow down from the deck plane of the boat. It may also be used to facilitate tilting operations ⁇ , ships with a working well notching the rear of the bridge.
- Suction anchors could also be provided. Suction anchors are hollow, with a cylinder or trihedral shape. They are driven into the ground by pumping water that is in the inte ⁇ laughing. These anchors can reach 10 to 25 m in height and 3 to 7 m in diameter. The soil of the place where they are to be installed (sands, clays) must have special geomechanical capabilities. It is then necessary to add to the traction line and to the electrical cables used for the installation of the turbo-machine, a pneumatic line connected to a pump on the ship. It can also be provided that the supporting base of the turbo-machine is an anchored raft.
- a preferred embodiment has been described in which an elongated turbomachine is associated with a seating system which it is secured during installation. It is also possible to provide elongated turbomachines that do not incorporate a seat structure, and designed so as to be fixed on a foundation system previously installed on the bottom.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0951595A FR2943079B1 (fr) | 2009-03-13 | 2009-03-13 | Systeme et procede d'immersion d'une turbomachine hydraulique |
PCT/FR2010/050436 WO2010103251A1 (fr) | 2009-03-13 | 2010-03-12 | Systeme et procede d'immersion d'une turbomachine hydraulique |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2406489A1 true EP2406489A1 (fr) | 2012-01-18 |
Family
ID=41413360
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10715927A Withdrawn EP2406489A1 (fr) | 2009-03-13 | 2010-03-12 | Systeme et procede d'immersion d'une turbomachine hydraulique |
Country Status (7)
Country | Link |
---|---|
US (1) | US20120082530A1 (fr) |
EP (1) | EP2406489A1 (fr) |
JP (1) | JP2012520416A (fr) |
KR (1) | KR20120053984A (fr) |
CA (1) | CA2755296A1 (fr) |
FR (1) | FR2943079B1 (fr) |
WO (1) | WO2010103251A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2513917B (en) * | 2013-05-10 | 2015-07-29 | 1847 Subsea Engineering Ltd | Tidal power generation apparatus and methods |
JP7349912B2 (ja) * | 2020-01-14 | 2023-09-25 | Ntn株式会社 | 水力発電装置の運搬機構 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2794941A (en) * | 1953-07-08 | 1957-06-04 | Sundstrand Machine Tool Co | Magnetic lifting unit |
US3777688A (en) * | 1970-06-25 | 1973-12-11 | Us Navy | Method and apparatus for emplacement of long beams in rugged sea bottom areas |
US4523878A (en) * | 1981-08-27 | 1985-06-18 | Exxon Production Research Co. | Remotely replaceable guidepost method and apparatus |
GB2408294B (en) * | 2001-10-04 | 2006-07-05 | Rotech Holdings Ltd | Power generator and turbine unit |
ITMI20012505A1 (it) * | 2001-11-29 | 2003-05-29 | Roberto Pizzigalli | Apparecchiatura idrodinamica per la generazione di corrente elettrica |
JP4401703B2 (ja) * | 2003-08-27 | 2010-01-20 | 三井造船株式会社 | 洋上風力発電装置の設置方法 |
GB0406336D0 (en) * | 2004-03-19 | 2004-04-21 | Subsea 7 Uk | Apparatus and method |
GB0610268D0 (en) * | 2006-05-24 | 2006-07-05 | Expro North Sea Ltd | Deployment system |
EP1980670B1 (fr) * | 2007-04-11 | 2009-07-15 | OpenHydro Group Limited | Procédé pour le déploiement d'une turbine hydroélectrique |
US7712429B1 (en) * | 2007-06-28 | 2010-05-11 | United States Of America As Represented By The Secretary Of The Navy | Launch and recovery system for unmanned undersea vehicles |
-
2009
- 2009-03-13 FR FR0951595A patent/FR2943079B1/fr not_active Expired - Fee Related
-
2010
- 2010-03-12 CA CA2755296A patent/CA2755296A1/fr not_active Abandoned
- 2010-03-12 WO PCT/FR2010/050436 patent/WO2010103251A1/fr active Application Filing
- 2010-03-12 KR KR1020117024025A patent/KR20120053984A/ko not_active Application Discontinuation
- 2010-03-12 US US13/256,284 patent/US20120082530A1/en not_active Abandoned
- 2010-03-12 EP EP10715927A patent/EP2406489A1/fr not_active Withdrawn
- 2010-03-12 JP JP2011553500A patent/JP2012520416A/ja not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
See references of WO2010103251A1 * |
Also Published As
Publication number | Publication date |
---|---|
FR2943079A1 (fr) | 2010-09-17 |
KR20120053984A (ko) | 2012-05-29 |
US20120082530A1 (en) | 2012-04-05 |
FR2943079B1 (fr) | 2011-04-29 |
JP2012520416A (ja) | 2012-09-06 |
WO2010103251A1 (fr) | 2010-09-16 |
CA2755296A1 (fr) | 2010-09-16 |
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Inventor name: ZANETTE, JERONIMO Inventor name: JAQUIER, THOMAS Inventor name: ACHARD, JEAN-LUC |
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Effective date: 20141001 |