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WO2022144471A1 - Offshore tower and assembly method - Google Patents

Offshore tower and assembly method Download PDF

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Publication number
WO2022144471A1
WO2022144471A1 PCT/ES2020/070824 ES2020070824W WO2022144471A1 WO 2022144471 A1 WO2022144471 A1 WO 2022144471A1 ES 2020070824 W ES2020070824 W ES 2020070824W WO 2022144471 A1 WO2022144471 A1 WO 2022144471A1
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WO
WIPO (PCT)
Prior art keywords
tower
rule
assembly
corrected according
lattice
Prior art date
Application number
PCT/ES2020/070824
Other languages
Spanish (es)
French (fr)
Inventor
Eneko Sanz Pascual
Ion Arocena DE LA RÚA
Jokin Rico Arenal
Francisco BALLESTER MUÑOZ
Original Assignee
Nabrawind Technologies. Sl
Ingecid, Investigación Y Desarrollo De Proyectos S.L.
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 Nabrawind Technologies. Sl, Ingecid, Investigación Y Desarrollo De Proyectos S.L. filed Critical Nabrawind Technologies. Sl
Priority to PCT/ES2020/070824 priority Critical patent/WO2022144471A1/en
Publication of WO2022144471A1 publication Critical patent/WO2022144471A1/en

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Classifications

    • 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
    • E02B17/027—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 steel structures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
    • B66C23/20—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes with supporting couples provided by walls of buildings or like structures
    • 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
    • E02B17/0004—Nodal points
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/10—Assembly of wind motors; Arrangements for erecting wind motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
    • F03D13/25—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors specially adapted for offshore installation
    • 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
    • E02B2017/0039—Methods for placing the offshore structure
    • E02B2017/0043—Placing the offshore structure on a pre-installed foundation structure
    • 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
    • E02B2017/0091—Offshore structures for wind turbines

Definitions

  • the present invention corresponds to an offshore tower of the so-called jacket type.
  • the main characteristic is its modularity and its simple assembly in the port to later be transported to the anchorage site, completing the rest of the assembly of the wind turbine on site with the help of an external crane attached to the tower itself.
  • Offshore wind turbines have various types of foundations, including mono-piles, lattice structures, also called jackets, and floating bases. Each of these ways of supporting the offshore wind turbine will be selected by the type of seabed and the existing depth. The current limitations are around 50 m. deep, where the mono-pile solution is not applicable and the jacket solution requires very expensive transportation and installation with the use of specialized boats (Jack-up Vessels). For depths greater than 50 m. the anchoring of offshore wind turbines tends to be floating. We thus have floating solutions that are very expensive and jacket solutions that are very complex in their installation for the depth range of 50 to 100 m.
  • Patent US3633369 shows a lattice tower, closer to the jacket concept. In this case, it is transported on floats that are subsequently filled with water sequentially until the structure is anchored. Finally, the floats are removed and the assembly is completed with the platform where the upper part of the wind turbine will be attached.
  • Patent US3859804 shows the method and support used to transport a jacket to the anchor point. In the same way as in previous cases, it is accompanied by a float that gradually sinks until the jacket is placed on the seabed. Once anchored, the auxiliary float is removed.
  • EP2730781 shows some complementary cranes capable of autoising, with the help of a projection on the tower itself and an attachable support, the tower, the nacelle and the blades to place them on a jacket foundation.
  • Patent WO2007091042 describes two auxiliary cranes on a barge, an element to support and hoist the tower complete with nacelle and blades, and a transition piece between the tower and its corresponding jacket with its anchoring elements. With all this, the upper part of the wind turbine is transported hanging and is finally attached to the jacket.
  • Patent WO2012024608 shows how to transport the tower of an offshore wind turbine, anchor it and brace it before assembling the rest of the nacelle tower and blades.
  • Patent WO2010139725 describes the transportation and anchoring of a complete offshore wind turbine. To achieve this, the tower is articulated at an intermediate point and while the upper part moves on a floating platform, the lower part moves with a float that later deflates so that the lower part sinks and settles on the previously cemented seabed. . The upper part of the tower is rotated and the wind turbine is fully assembled.
  • the object of the invention is the design and assembly of a new jacket tower for offshore wind turbines with depths greater than 50 m. whose main characteristic is the modularity and assembly in port and its transport to the location with the tubular tower also assembled.
  • several separately assembled lattice tower sections are used and crowned by a transition piece that is also modular.
  • the sections of the tower are made up of three columns assembled together with diagonals and transversals, all of them joined by maintenance-free screws and adapted to operate under water.
  • the assembly of these modules is carried out in a horizontal position on the dock and is crowned with a transition that has a central truncated-conical part topped by diagonal columns and radial columns. Subsequently, we proceed with the assembly of the different sections that make up the tubular tower. After adding some floats, we proceed with its transport to the anchor point.
  • Another object of the invention is the final assembly of the nacelle and the blades with an auxiliary crane adapted to the upper end of the tubular tower, avoiding the use of Jack-up Vessels or auxiliary cranes arranged on barges.
  • a solution is available for offshore wind turbines anchored in depths greater than 50 m. Costs are lower compared to the only existing solution at present for these depths, the floating solution, which is extremely expensive.
  • the proposed tower is very rigid since the modules are very large and the columns that form these modules are very far apart. All modules and the transition are bolted thus avoiding the heavy welded structures used today. This makes it possible to drastically reduce the specific costs €/kg compared to current solutions. It is not necessary to have a manufacturing platform in the port, the platform used is only for assembly, so any port in the world can house these platforms.
  • the CAPEX reduction can reach 30% compared to floating solutions and, in turn, the available market is drastically increased compared to currently existing offshore wind turbines.
  • Figure 1 represents the transfer of the pieces in conventional trucks.
  • Figure 2a shows a plan view and Figure 2b a ground elevation view of the jacket mounting port.
  • Figure 3a is a plan view and figure 3b is an elevation view of the assembly, on supports, of the tubular part of the tower.
  • Figure 4a is a plan view and figure 4b is an elevation view of the floats bordering the jacket structure.
  • Figure 5 shows how the assembly is hoisted and moved on the port quay.
  • Figure 6 shows the transfer to the water and how the assembly is deposited there.
  • Figure 7 represents the transfer of the entire tower by means of a barge.
  • Figures 8, 9 and 10 show the approach and anchoring of the tower.
  • Figure 11 shows placement on the previously piloted template.
  • Figure 12 represents the tower once it has been seated on the foundation and the floats have been removed.
  • Figure 13 describes the mounting of the external crane on top of the tubular tower.
  • Figure 14 shows the final assembly of the nacelle and the blades with the external crane.
  • Figure 15 shows the offshore wind turbine once assembly has been completed.
  • the assembly continues by adding to the transition piece (5) the different modules that make up the tubular tower (11) which is covered at the top so that water does not penetrate into it. inside.
  • the jacket tower is assembled on the ground (10), supported by supports (12) for the part of the lattice and other supports (13) for the part of the tubular tower (11).
  • Figure 6 shows how said elevators (15) move to transfer the tower from the ground (10) to the edge of the dock, where the water (16) is located. Once there, the tower is lowered until, due to the action of the floats (14), it remains floating on the water (16).
  • Figure 8 shows the arrangement of the tower on the foundation (19) which is anchored in the seabed (20).
  • Said foundation (19) is made up of an adaptation piece and its corresponding piles, which forms a triangular-shaped adaptation template.
  • Figure 13 shows the assembly process of the external crane.
  • the mouth of the tubular tower (18) is covered so that water (16) does not penetrate inside the tower (11), once it is uncovered, a hoist is installed at the top of the tower from the port.
  • (21) capable of raising other larger pieces such as, for example, at least one horizontal support (22) that crosses the tower (11).
  • a vertical piece (23) is mounted with the ability to distance itself from the mouth of the tubular tower (18) and grow in height.
  • Said vertical piece (23) is complemented by its corresponding pen.
  • the load capacity of the hoist (21) is estimated at 30t and that of the external crane at 500t.
  • Figure 15 shows the wind turbine of the invention completely assembled and supported on its foundation.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Wind Motors (AREA)

Abstract

Disclosed is a method for assembling an offshore tower formed by a trellis part comprising different sections (4) connected together, a transition piece (5) and a tubular tower section (11). The entire assembly is modular and is connected using maintenance-free screws, with an anti-saline treatment. Assembly is carried out horizontally on a dock of a port, without need for large spaces. Once completely assembled and closed at the top end (18), the tower is transported, using floats (14), to a foundation (19) where it is then pinned. The assembly of a gondola (25) and blades is completed using an external crane (24) assembled using an internal hoist (21). The external crane (24)is removed once the process is complete, and the operation is finished with internal wiring.

Description

[Corregido según la Regla 26, 03.03.2021]
Campo de la invención [Corrected according to Rule 26, 03.03.2021]
field of invention
[Corregido según la Regla 26, 03.03.2021]
La presente invención corresponde a una torre offshore del tipo de las denominadas jackets. La principal característica es su modularidad y su sencillo montaje en puerto para posteriormente transportarse hasta el lugar de anclaje, completándose in situ el resto del montaje del aerogenerador con la ayuda de una grúa externa acoplada a la propia torre.[Corrected according to Rule 26, 03.03.2021]
The present invention corresponds to an offshore tower of the so-called jacket type. The main characteristic is its modularity and its simple assembly in the port to later be transported to the anchorage site, completing the rest of the assembly of the wind turbine on site with the help of an external crane attached to the tower itself.
[Corregido según la Regla 26, 03.03.2021]
Antecedentes de la invención [Corrected according to Rule 26, 03.03.2021]
Background of the invention
[Corregido según la Regla 26, 03.03.2021]
Los aerogeneradores offshore tienen varios tipos de cimentaciones entre las que destacan las mono-pilote, las estructuras en celosía, también llamadas jacket y las bases flotantes. Cada una de estas formas de soportar el aerogenerador offshore vendrá seleccionada por el tipo de fondo marino y la profundidad existentes. Las limitaciones actuales están en torno a los 50 m. de profundidad, donde la solución mono-pilote no es aplicable y la solución jacket requiere de un transporte e instalación muy costoso con el uso de barcos especializados (Jack-up Vessels). Para profundidades superiores a los 50 m. el anclaje de los aerogeneradores offshore tiende a ser flotante. Tenemos así que las soluciones flotantes son muy caras y las soluciones jacket muy complejas en su instalación para el rango de profundidades de 50 a 100 m.[Corrected according to Rule 26, 03.03.2021]
Offshore wind turbines have various types of foundations, including mono-piles, lattice structures, also called jackets, and floating bases. Each of these ways of supporting the offshore wind turbine will be selected by the type of seabed and the existing depth. The current limitations are around 50 m. deep, where the mono-pile solution is not applicable and the jacket solution requires very expensive transportation and installation with the use of specialized boats (Jack-up Vessels). For depths greater than 50 m. the anchoring of offshore wind turbines tends to be floating. We thus have floating solutions that are very expensive and jacket solutions that are very complex in their installation for the depth range of 50 to 100 m.
[Corregido según la Regla 26, 03.03.2021]
Existe un amplio Estado de la Técnica en relación con patentes de torres para aerogeneradores offshore. La patente US3633369 muestra una torre de celosía, más cercana al concepto jacket. En este caso se transporta sobre unos flotadores que posteriormente se van rellenando de agua secuencialmente hasta lograr el fondeo de la estructura. Finalmente se retiran los flotadores y se completa el montaje con la plataforma donde se acoplará la parte superior del aerogenerador. La patente US3859804 muestra el método y el soporte utilizados para transportar una jacket hasta el punto de anclaje. De igual forma que en casos anteriores se acompaña de un flotador que se va hundiendo paulatinamente hasta que la jacket queda dispuesta sobre el fondo marino. Una vez anclado el flotador auxiliar se retira. La EP2730781 muestra unas grúas complementarias capaces de autoizar, con la ayuda de un resalte en la propia torre y de un soporte acoplable, la torre, la nacelle y las palas para colocarlas sobre una cimentación jacket. Existen diversas realizaciones prácticas de las citadas grúas complementarias. La patente WO2007091042 describe dos grúas auxiliares sobre una barcaza, un elemento para soportar e izar la torre completa con nacelle y palas y una pieza de transición entre la torre y su correspondiente jacket con sus elementos de anclaje. Con todo ello la parte superior del aerogenerador se transporta colgada y finalmente se acopla sobre el jacket. La patente WO2012024608 muestra como transportar la torre de un aerogenerador offshore, fondearla y atirantarla antes de montar el resto de la torre nacelle y palas. Una vez afianzada la torre se procede al montaje de la nacelle y las palas. Finalmente, el resto de la torre tubular que se encuentra en el interior de la jacket se autoiza distanciándose del agua. La patente WO2010139725 describe el transporte y anclaje de un aerogenerador offshore completo. Para lograrlo, la torre está articulada en un punto intermedio y mientras la parte superior se traslada en una plataforma flotante, la inferior se desplaza con un flotador que posteriormente se desinfla para que la parte inferior se hunda y se asiente en el lecho marino previamente cimentado. Se gira la parte superior de la torre y el aerogenerador queda completamente montado.[Corrected according to Rule 26, 03.03.2021]
There is a wide State of the Art in relation to patents for towers for offshore wind turbines. Patent US3633369 shows a lattice tower, closer to the jacket concept. In this case, it is transported on floats that are subsequently filled with water sequentially until the structure is anchored. Finally, the floats are removed and the assembly is completed with the platform where the upper part of the wind turbine will be attached. Patent US3859804 shows the method and support used to transport a jacket to the anchor point. In the same way as in previous cases, it is accompanied by a float that gradually sinks until the jacket is placed on the seabed. Once anchored, the auxiliary float is removed. EP2730781 shows some complementary cranes capable of autoising, with the help of a projection on the tower itself and an attachable support, the tower, the nacelle and the blades to place them on a jacket foundation. There are various practical embodiments of the aforementioned complementary cranes. Patent WO2007091042 describes two auxiliary cranes on a barge, an element to support and hoist the tower complete with nacelle and blades, and a transition piece between the tower and its corresponding jacket with its anchoring elements. With all this, the upper part of the wind turbine is transported hanging and is finally attached to the jacket. Patent WO2012024608 shows how to transport the tower of an offshore wind turbine, anchor it and brace it before assembling the rest of the nacelle tower and blades. Once the tower is secured, the nacelle and the blades are assembled. Finally, the rest of the tubular tower that is inside the jacket is authorized by distancing itself from the water. Patent WO2010139725 describes the transportation and anchoring of a complete offshore wind turbine. To achieve this, the tower is articulated at an intermediate point and while the upper part moves on a floating platform, the lower part moves with a float that later deflates so that the lower part sinks and settles on the previously cemented seabed. . The upper part of the tower is rotated and the wind turbine is fully assembled.
[Corregido según la Regla 26, 03.03.2021]
No se conoce la utilidad de transportar la torre tubular completamente montada sobre la torre de celosía, para posteriormente finalizar el montaje de la nacelle y las palas con una grúa externa asentada sobre el extremo superior de la torre tubular.[Corrected according to Rule 26, 03.03.2021]
The usefulness of transporting the tubular tower completely assembled on the lattice tower, in order to later finish the assembly of the nacelle and the blades with an external crane seated on the upper end of the tubular tower, is not known.
[Corregido según la Regla 26, 03.03.2021]
Descripción de la invención [Corrected according to Rule 26, 03.03.2021]
Description of the invention
[Corregido según la Regla 26, 03.03.2021]
El objeto de la invención es el diseño y montaje de una nueva torre jacket para aerogeneradores offshore con profundidades mayores de 50 m. cuya característica principal es la modularidad y ensamblabilidad en puerto y su transporte hasta la ubicación con la torre tubular también ensamblada. Para lograrlo se utilizan varios tramos de torre de celosía montados por separado y coronados por una pieza de transición que también es modular. Los tramos de la torre los componen tres columnas ensambladas entre si con diagonales y con transversales todas ellas unidas mediante tornillos libres de mantenimiento y adaptados para operar bajo el agua. El montaje de estos módulos se realiza en posición horizontal en el muelle y se corona con una transición que dispone de una parte tronco-cónica central rematada por columnas diagonales y columnas radiales. Posteriormente se procede con el ensamblaje de los distintos tramos que componen torre tubular. Tras añadirle unos flotadores se procede con su transporte al punto de anclaje.[Corrected according to Rule 26, 03.03.2021]
The object of the invention is the design and assembly of a new jacket tower for offshore wind turbines with depths greater than 50 m. whose main characteristic is the modularity and assembly in port and its transport to the location with the tubular tower also assembled. To achieve this, several separately assembled lattice tower sections are used and crowned by a transition piece that is also modular. The sections of the tower are made up of three columns assembled together with diagonals and transversals, all of them joined by maintenance-free screws and adapted to operate under water. The assembly of these modules is carried out in a horizontal position on the dock and is crowned with a transition that has a central truncated-conical part topped by diagonal columns and radial columns. Subsequently, we proceed with the assembly of the different sections that make up the tubular tower. After adding some floats, we proceed with its transport to the anchor point.
[Corregido según la Regla 26, 03.03.2021]
Es otro objeto de la invención el montaje final de la nacelle y de las palas con una grúa auxiliar adaptada en el extremo superior de la torre tubular evitando la utilización de Jack-up Vessels o grúas auxiliares dispuestas en barcazas.[Corrected according to Rule 26, 03.03.2021]
Another object of the invention is the final assembly of the nacelle and the blades with an auxiliary crane adapted to the upper end of the tubular tower, avoiding the use of Jack-up Vessels or auxiliary cranes arranged on barges.
[Corregido según la Regla 26, 03.03.2021]
De todo lo descrito se desprenden las siguientes ventajas del objeto de la invención frente al estado de la técnica: Se dispone de una solución para aerogeneradores offshore anclados en profundidades superiores a 50 m. Se abaratan los costes frente a la única solución existente en la actualidad para dichas profundidades, la solución flotante, que es extremadamente cara. La torre propuesta es muy rígida ya que los módulos son muy grandes y las columnas que forman dichos módulos están muy separadas. Todos los módulos y la transición están atornillados evitando así las pesadas estructuras soldadas utilizadas en la actualidad. Esto permite reducir drásticamente los costes específicos €/kg con respecto a soluciones actuales. No es necesario disponer de una plataforma de fabricación en el puerto, la plataforma utilizada es únicamente de montaje, por lo que cualquier puerto del mundo puede albergar dichas plataformas. La reducción del CAPEX puede alcanzar el 30% respecto a las soluciones flotantes y a su vez se aumenta drásticamente el mercado disponible frente a los aerogeneradores offshore existentes actualmente.[Corrected according to Rule 26, 03.03.2021]
From all that has been described, the following advantages of the object of the invention are derived from the state of the art: A solution is available for offshore wind turbines anchored in depths greater than 50 m. Costs are lower compared to the only existing solution at present for these depths, the floating solution, which is extremely expensive. The proposed tower is very rigid since the modules are very large and the columns that form these modules are very far apart. All modules and the transition are bolted thus avoiding the heavy welded structures used today. This makes it possible to drastically reduce the specific costs €/kg compared to current solutions. It is not necessary to have a manufacturing platform in the port, the platform used is only for assembly, so any port in the world can house these platforms. The CAPEX reduction can reach 30% compared to floating solutions and, in turn, the available market is drastically increased compared to currently existing offshore wind turbines.
[Corregido según la Regla 26, 03.03.2021]
Breve descripción de los dibujos [Corrected according to Rule 26, 03.03.2021]
Brief description of the drawings
[Corregido según la Regla 26, 03.03.2021]
A continuación se pasa a describir de manera muy breve una serie de dibujos que ayudan a comprender mejor la invención y que se relacionan expresamente con una realización de dicha invención que se presenta como un ejemplo no limitativo de ésta.[Corrected according to Rule 26, 03.03.2021]
Next, a very brief description is given of a series of drawings that help to better understand the invention and that are expressly related to an embodiment of said invention that is presented as a non-limiting example of it.
[Corregido según la Regla 26, 03.03.2021]
La Figura 1 representa el traslado de las piezas en camiones convencionales.[Corrected according to Rule 26, 03.03.2021]
Figure 1 represents the transfer of the pieces in conventional trucks.
[Corregido según la Regla 26, 03.03.2021]
La Figura 2a muestra una vista en planta y la figura 2b una vista en alzado sobre el suelo del puerto del montaje del jacket.[Corrected according to Rule 26, 03.03.2021]
Figure 2a shows a plan view and Figure 2b a ground elevation view of the jacket mounting port.
[Corregido según la Regla 26, 03.03.2021]
La Figura 3a es una vista en planta y la figura 3b en alzado del montaje, sobre apoyos, de la parte tubular de la torre.[Corrected according to Rule 26, 03.03.2021]
Figure 3a is a plan view and figure 3b is an elevation view of the assembly, on supports, of the tubular part of the tower.
[Corregido según la Regla 26, 03.03.2021]
[Corregido según la Regla 26, 03.03.2021]
La Figura 4a es una vista en planta y la figura 4b en alzado de los flotadores bordeando la estructura jacket.[Corrected according to Rule 26, 03.03.2021]
[Corrected according to Rule 26, 03.03.2021]
Figure 4a is a plan view and figure 4b is an elevation view of the floats bordering the jacket structure.
[Corregido según la Regla 26, 03.03.2021]
La Figura 5 muestra como se iza y traslada el conjunto en el muelle del puerto.[Corrected according to Rule 26, 03.03.2021]
Figure 5 shows how the assembly is hoisted and moved on the port quay.
[Corregido según la Regla 26, 03.03.2021]
La Figura 6 muestra el traslado hasta el agua y como se deposita allí el conjunto.[Corrected according to Rule 26, 03.03.2021]
Figure 6 shows the transfer to the water and how the assembly is deposited there.
[Corregido según la Regla 26, 03.03.2021]
La Figura 7 representa el traslado de toda la torre por medio de una barcaza.[Corrected according to Rule 26, 03.03.2021]
Figure 7 represents the transfer of the entire tower by means of a barge.
[Corregido según la Regla 26, 03.03.2021]
Las Figuras 8, 9 y 10 muestran el acercamiento y el fondeo de la torre.[Corrected according to Rule 26, 03.03.2021]
Figures 8, 9 and 10 show the approach and anchoring of the tower.
[Corregido según la Regla 26, 03.03.2021]
La Figura 11 muestra la colocación sobre la plantilla previamente pilotada.[Corrected according to Rule 26, 03.03.2021]
Figure 11 shows placement on the previously piloted template.
[Corregido según la Regla 26, 03.03.2021]
La Figura 12 representa la torre una vez ha quedado asentada sobre la cimentación y se han retirado los flotadores.[Corrected according to Rule 26, 03.03.2021]
Figure 12 represents the tower once it has been seated on the foundation and the floats have been removed.
[Corregido según la Regla 26, 03.03.2021]
La Figura 13 describe el montaje de la grúa externa en la parte superior de la torre tubular.[Corrected according to Rule 26, 03.03.2021]
Figure 13 describes the mounting of the external crane on top of the tubular tower.
[Corregido según la Regla 26, 03.03.2021]
La Figura 14 muestra el montaje final de la nacelle y de las palas con la grúa externa.[Corrected according to Rule 26, 03.03.2021]
Figure 14 shows the final assembly of the nacelle and the blades with the external crane.
[Corregido según la Regla 26, 03.03.2021]
La Figura 15 muestra el aerogenerador offshore una vez ha concluido el montaje.[Corrected according to Rule 26, 03.03.2021]
Figure 15 shows the offshore wind turbine once assembly has been completed.
[Corregido según la Regla 26, 03.03.2021]
Descripción detallada de la invención [Corrected according to Rule 26, 03.03.2021]
Detailed description of the invention
[Corregido según la Regla 26, 03.03.2021]
Tal y como se muestra en la figura 1, varios vehículos convencionales (1) son los encargados de transportar al puerto todos los elementos con los que se constituirá la torre de la invención. Para la formación de parte de celosía tendremos diferentes módulos compuestos por columnas (2) y diagonales (3) que se ensamblan con tornillos libres de mantenimiento. Así se compone los tres módulos (4) que componen la parte inferior de la torre y que se coronan con la pieza de transición (5), tal y como se muestra en las figuras 2a y 2b. La pieza de transición (5) se compone de una pieza tronco-cónica invertida (6) dispuesta en la parte central y rematada por columnas diagonales y columnas radiales (7). Este diseño está previamente descrito en la PCT/ES2019/070744 del mismo solicitante. La parte de celosía compuesta por los tres módulos (4) tienen un gradiente positivo (8) contado desde la transición (5) hasta el final puntiagudo de las columnas (9). Dicho gradiente se mide desde el nivel del suelo (10).[Corrected according to Rule 26, 03.03.2021]
As shown in figure 1, several conventional vehicles (1) are in charge of transporting all the elements with which the tower of the invention will be constituted to the port. For the formation of part of the lattice we will have different modules composed of columns (2) and diagonals (3) that are assembled with maintenance-free screws. This is how the three modules (4) that make up the lower part of the tower and which are crowned with the transition piece (5) are made up, as shown in figures 2a and 2b. The transition piece (5) is made up of an inverted frusto-conical piece (6) arranged in the central part and topped by diagonal columns and radial columns (7). This design is previously described in PCT/ES2019/070744 of the same applicant. The part of the lattice made up of the three modules (4) has a positive gradient (8) counted from the transition (5) to the pointed end of the columns (9). Said gradient is measured from ground level (10).
[Corregido según la Regla 26, 03.03.2021]
Tal y como se muestra en las figuras 3a y 3b, el montaje continúa añadiendo a la pieza de transición (5) los distintos módulos que componen la torre tubular (11) que está tapada en su parte superior para que no penetre el agua en su interior. El montaje de la torre jacket se realiza sobre el suelo (10), apoyándose en unos soportes (12) para la parte de la celosía y otros soportes (13) para la parte de la torre tubular (11).[Corrected according to Rule 26, 03.03.2021]
As shown in figures 3a and 3b, the assembly continues by adding to the transition piece (5) the different modules that make up the tubular tower (11) which is covered at the top so that water does not penetrate into it. inside. The jacket tower is assembled on the ground (10), supported by supports (12) for the part of the lattice and other supports (13) for the part of the tubular tower (11).
[Corregido según la Regla 26, 03.03.2021]
En las figuras 4a y 4b se añaden unos flotadores (14) distribuidos en la parte de celosía. El soporte (12) de la parte de celosía permite ajustar a sus lados los citados flotadores (14) al quedar suficiente espacio entre la torre y el suelo (10).[Corrected according to Rule 26, 03.03.2021]
In figures 4a and 4b some floats (14) distributed in the lattice part are added. The support (12) of the lattice part allows the aforementioned floats (14) to be adjusted to its sides as there is sufficient space between the tower and the ground (10).
[Corregido según la Regla 26, 03.03.2021]
Tal y como se muestra en la figura 5 una vez finalizado el montaje de la torre completa sobre el suelo (10) se procede a su izado. Es importante que el montaje se realice dentro del puerto y en un muelle lo más cercano del agua. Para el izado se utilizan varios elevadores (15) que se enganchan en diversas partes: dos en la torre tubular y otras tres en la torre de celosía. El número de elevadores no es limitante y dependerá del tamaño de la torre.[Corrected according to Rule 26, 03.03.2021]
As shown in figure 5, once the assembly of the complete tower on the ground (10) is finished, it is hoisted. It is important that the assembly is carried out within the port and on a dock as close to the water as possible. Several elevators (15) are used for hoisting, which are hooked to different parts: two in the tubular tower and another three in the lattice tower. The number of elevators is not limiting and will depend on the size of the tower.
[Corregido según la Regla 26, 03.03.2021]
En la figura 6 se muestra como dichos elevadores (15) se desplazan para trasladar la torre desde el suelo (10) hasta el borde del muelle, donde se encuentra el agua (16). Una vez allí dispuesto, se procede a descender la torre hasta que, por la acción de los flotadores (14), quede flotando sobre el agua (16).[Corrected according to Rule 26, 03.03.2021]
Figure 6 shows how said elevators (15) move to transfer the tower from the ground (10) to the edge of the dock, where the water (16) is located. Once there, the tower is lowered until, due to the action of the floats (14), it remains floating on the water (16).
[Corregido según la Regla 26, 03.03.2021]
En la figura 7, la torre completa queda flotando sobre el agua (16) por la acción de los flotadores (14). Con la ayuda de un remolcador (17) se traslada desde la orilla hasta el lugar donde se instala. Como se ha mencionado anteriormente la embocadura de la torre tubular (18) se encuentra tapada para que no penetre el agua (16) en su interior.[Corrected according to Rule 26, 03.03.2021]
In figure 7, the complete tower remains floating on the water (16) by the action of the floats (14). With the help of a tugboat (17) it is moved from the shore to the place where it is installed. As mentioned above, the mouth of the tubular tower (18) is covered so that the water (16) does not penetrate inside.
[Corregido según la Regla 26, 03.03.2021]
La figura 8 muestra la disposición de la torre sobre la cimentación (19) que se encuentra anclada en el lecho marino (20). Dicha cimentación (19) la componen una pieza de adaptación y sus correspondientes pilotes, lo que conforma una plantilla de adaptación de forma triangular.[Corrected according to Rule 26, 03.03.2021]
Figure 8 shows the arrangement of the tower on the foundation (19) which is anchored in the seabed (20). Said foundation (19) is made up of an adaptation piece and its corresponding piles, which forms a triangular-shaped adaptation template.
[Corregido según la Regla 26, 03.03.2021]
Tal y como se muestra en las figuras 9, 10, 11 y 12 se procede al fondeo controlado de la torre. Para ello se van inundando partes de la estructura inferior o bien se van inundando los flotadores (14). Una vez que la torre está en disposición vertical se ajusta al punto preciso con la ayuda de sus correspondientes remolcadores (17) y se procede con el pinchado de la torre en la plantilla de adaptación de forma triangular previamente pilotada al fondo que forma la cimentación (19). Para ello los tres finales puntiagudos de las columnas (9) se insertarán en los tres agujeros de la citada plantilla. Posteriormente se procede a aplicar grout para completar la unión. Como alternativa a esta solución, existe la posibilidad de integrar la plantilla como un módulo adicional ensamblado en la parte inferior del jacket y realizar el pilotado tras el fondeo.[Corrected according to Rule 26, 03.03.2021]
As shown in figures 9, 10, 11 and 12, the controlled anchoring of the tower is carried out. To do this, parts of the lower structure are flooded or the floats (14) are flooded. Once the tower is vertical, it is adjusted to the precise point with the help of its corresponding tugs (17) and the tower is punctured in the previously piloted triangular-shaped adaptation template to the bottom that forms the foundation ( 19). To do this, the three pointed ends of the columns (9) will be inserted into the three holes of the aforementioned template. Subsequently, grout is applied to complete the union. As an alternative to this solution, there is the possibility of integrating the template as an additional module assembled in the lower part of the jacket and piloting it after anchoring.
[Corregido según la Regla 26, 03.03.2021]
La figura 13 muestra el proceso de montaje de la grúa externa. La embocadura de la torre tubular (18) se encuentra tapada para que no penetre agua (16) en el interior de la torre (11), una vez que se destapa, en la parte superior de la torre hay instalado desde el puerto un polipasto (21) capaz de ir elevando otras piezas más grandes como por ejemplo, al menos un soporte horizontal (22) que atraviese la torre (11). Sobre estos soportes, se monta una pieza vertical (23) con la capacidad de distanciarse de la embocadura de la torre tubular (18) e ir creciendo en altura. La citada pieza vertical (23) se complementa con su correspondiente pluma. La capacidad de carga del polipasto (21) se estima en 30t y la de la grúa externa en 500t.[Corrected according to Rule 26, 03.03.2021]
Figure 13 shows the assembly process of the external crane. The mouth of the tubular tower (18) is covered so that water (16) does not penetrate inside the tower (11), once it is uncovered, a hoist is installed at the top of the tower from the port. (21) capable of raising other larger pieces such as, for example, at least one horizontal support (22) that crosses the tower (11). On these supports, a vertical piece (23) is mounted with the ability to distance itself from the mouth of the tubular tower (18) and grow in height. Said vertical piece (23) is complemented by its corresponding pen. The load capacity of the hoist (21) is estimated at 30t and that of the external crane at 500t.
[Corregido según la Regla 26, 03.03.2021]
En la figura 14, una vez que la pieza vertical (23) se ha distanciado lo suficiente de la torre, la grúa externa (24) así constituida podrá ya izar y montar la nacelle (25) y las palas (no mostradas). No será necesario el uso de Jack-up vessels para finalizar el montaje del aerogenerador. Una simple barcaza (26) será suficiente para transportar la nacelle y palas y para albergar la grúa externa (24) que previamente deberá montarse para luego desmontarse una vez finalizado el montaje. También hay que instalar a posteriori los equipos eléctricos para la transferencia de la energía generada.[Corrected according to Rule 26, 03.03.2021]
In figure 14, once the vertical piece (23) has been sufficiently distanced from the tower, the external crane (24) thus constituted will be able to hoist and mount the nacelle (25) and the blades (not shown). The use of Jack-up vessels will not be necessary to complete the assembly of the wind turbine. A simple barge (26) will suffice to transport the nacelle and blades and to house the external crane (24) which must first be assembled and then disassembled once assembly is complete. The electrical equipment for the transfer of the generated energy must also be installed retrospectively.
[Corregido según la Regla 26, 03.03.2021]
La figura 15 muestra el aerogenerador de la invención completamente montado y soportado sobre su cimentación.[Corrected according to Rule 26, 03.03.2021]
Figure 15 shows the wind turbine of the invention completely assembled and supported on its foundation.
[Corregido según la Regla 26, 03.03.2021]
[Corrected according to Rule 26, 03.03.2021]

Claims (7)

  1. [Corregido según la Regla 26, 03.03.2021]
    Método de montaje de una torre offshore tipo jacket, de las que comprenden una parte en celosía y una parte tubular (11) - la parte de celosía está formada por varios tramos (4) estando cada uno de ellos compuesto por tres columnas (2) y sus correspondientes diagonales (3), - la transición (5) se forma con una parte tronco-cónica invertida central rematada por columnas diagonales y columnas radiales, - la parte tubular (11) la componen diversos anillos tronco-cónicos ensamblados, y dicho método de montaje de la torre está caracterizado por que: - se unen los tres tramos de celosía (4), la transición (5) y la parte tubular (11) mediante uniones atornilladas libres de mantenimiento y con tratamiento para agua salina, - la unión de la torre jacket completa se lleva a cabo en un muelle de un puerto y en forma horizontal y la parte superior de la torre tubular (18) está ocluida, - se añaden flotadores (14) distribuidos por la superficie del jacket, - completado el montaje, se procede a izar y transportar la torre mediante varios elevadores (15) hasta el borde del muelle para depositarla sobre el agua (16), - flotando sobre el agua (16) se desplaza hasta el punto donde se encuentra su correspondiente cimentación (19), - se procede con el fondeo y colocación (pinchado) de la torre con la plantilla de adaptación de forma triangular que forma parte de la cimentación (19), y - se retiran los flotadores (14).     [Corrected according to Rule 26, 03.03.2021]
    Assembly method of a jacket-type offshore tower, comprising a lattice part and a tubular part (11) - the lattice part is made up of several sections (4), each of which is made up of three columns (2) and its corresponding diagonals (3), - the transition (5) is formed with a central inverted frusto-conical part topped by diagonal columns and radial columns, - the tubular part (11) is made up of various assembled frusto-conical rings, and said The tower assembly method is characterized by the fact that: - the three lattice sections (4), the transition (5) and the tubular part (11) are joined by means of maintenance-free bolted joints with saline water treatment, - the complete jacket tower joint is carried out on a dock of a port and horizontally and the top of the tubular tower (18) is occluded, - floats (14) distributed over the surface of the jacket are added, - completed assembly, proceed to hoist and transport the tower by means of several elevators (15) to the edge of the pier to deposit it on the water (16), - floating on the water (16) it moves to the point where its corresponding foundation (19) is located, - proceed with the anchoring and placement (punctured) of the tower with the triangular-shaped adaptation template that forms part of the foundation (19), and - the floats (14) are removed.
  2. [Corregido según la Regla 26, 03.03.2021]
    Método de montaje de una torre offshore según la reivindicación primera caracterizado por que una vez completado el montaje de la torre y el pinchado de la misma en su cimentación (19):- se monta y utiliza un polipasto (21) en la parte superior de la torre tubular para proceder al montaje de una grúa externa (24), - se completa el montaje de la nacelle (25) y de las palas mediante la citada grúa externa (24), y - se desmonta la grúa externa (24) y se procede con el cableado interno.     [Corrected according to Rule 26, 03.03.2021]
    Method of assembling an offshore tower according to the first claim, characterized in that once the assembly of the tower is completed and the puncturing of the same in its foundation (19):- a hoist (21) is assembled and used in the upper part of the tubular tower to proceed with the assembly of an external crane (24), - the assembly of the nacelle (25) and the blades is completed by means of said external crane (24), and - the external crane (24) is disassembled and Proceed with the internal wiring.
  3. [Corregido según la Regla 26, 03.03.2021]
    Método de montaje de una torre offshore según las reivindicaciones anteriores, caracterizado porque la grúa externa (24) tiene al menos un soporte horizontal (22) que atraviesa la torre (11), tiene una capacidad para izar 500t y se extiende por encima de parte superior de la torre tubular (11) con la pieza vertical (23) extensible y coronada por su correspondiente pluma.     [Corrected according to Rule 26, 03.03.2021]
    Assembly method of an offshore tower according to the previous claims, characterized in that the external crane (24) has at least one horizontal support (22) that crosses the tower (11), has a capacity to hoist 500t and extends above part top of the tubular tower (11) with the vertical piece (23) extensible and crowned by its corresponding boom.
  4. [Corregido según la Regla 26, 03.03.2021]
    Método de montaje de una torre offshore según las reivindicaciones anteriores, caracterizado porque los tramos de la celosía (4) tienen un gradiente positivo (8) que proporciona una forma piramidal ensanchándose desde la transición hacia el final puntiagudo de las columnas (9).     [Corrected according to Rule 26, 03.03.2021]
    Assembly method of an offshore tower according to the previous claims, characterized in that the lattice sections (4) have a positive gradient (8) that provides a pyramidal shape, widening from the transition to the pointed end of the columns (9).
  5. [Corregido según la Regla 26, 03.03.2021]
    Método de montaje de una torre offshore según las reivindicaciones anteriores, caracterizado porque para completar el montaje en horizontal se dispone de útiles de apoyo (12 y 13) sobre los que se soporta la parte tubular y la parte central de la celosía dejando libre los extremos de la celosía para instalar los flotadores (14).     [Corrected according to Rule 26, 03.03.2021]
    Assembly method of an offshore tower according to the previous claims, characterized in that to complete the horizontal assembly there are support tools (12 and 13) on which the tubular part and the central part of the lattice are supported, leaving the ends free. of the lattice to install the floats (14).
  6. [Corregido según la Regla 26, 03.03.2021]
    Método de montaje de una torre offshore según las reivindicaciones anteriores, caracterizado porque el desplazamiento por el agua (16) se realiza con la ayuda de al menos un remolcador (17).     [Corrected according to Rule 26, 03.03.2021]
    Assembly method of an offshore tower according to the preceding claims, characterized in that the movement through the water (16) is carried out with the help of at least one tugboat (17).
  7. [Corregido según la Regla 26, 03.03.2021]
    Torre de aerogenerador offshore caracterizada porque todas las piezas que la componen: la parte de celosía formada por varios tramos (4) de tres columnas (2) y sus correspondientes diagonales (3), la transición (5) con una parte tronco-cónica invertida central rematada por columnas diagonales y columnas radiales y la parte tubular (11) compuesta por diversos anillos tronco-cónicos ensamblados, son transportables en camiones convencionales, unidos mediante tornillos en forma horizontal sobre un muelle, rodeada de flotadores (14) y transportada al completo por el agua (16) con la parte superior de la torre (18) ocluida.     [Corrected according to Rule 26, 03.03.2021]
    Offshore wind turbine tower characterized by all the parts that make it up: the lattice part formed by several sections (4) of three columns (2) and their corresponding diagonals (3), the transition (5) with an inverted frusto-conical part central topped by diagonal columns and radial columns and the tubular part (11) composed of various assembled frusto-conical rings, are transportable in conventional trucks, joined horizontally by screws on a spring, surrounded by floats (14) and transported completely by the water (16) with the upper part of the tower (18) occluded.
PCT/ES2020/070824 2020-12-29 2020-12-29 Offshore tower and assembly method WO2022144471A1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB202405378D0 (en) 2024-04-16 2024-05-29 Aker Solutions As Construction of jacket wind turbine foundations

Citations (5)

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Publication number Priority date Publication date Assignee Title
US3347052A (en) * 1965-04-26 1967-10-17 Movible Offshore Inc Method of and apparatus for transporting, erecting, and salvaging off-shore structures
WO2002034664A1 (en) * 2000-10-25 2002-05-02 Nordex Gmbh A method of placing a crane in connection with a windmill
WO2010147481A1 (en) * 2009-06-16 2010-12-23 Dr. Techn. Olav Olsen As Wind turbine foundation for variable water depth
EP3078846A1 (en) * 2015-03-13 2016-10-12 ALSTOM Renewable Technologies Wind turbine parts handling method and device
ES2735881T3 (en) * 2016-07-01 2019-12-20 Vsl Int Ag Method to mount a wind turbine in a tower

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3347052A (en) * 1965-04-26 1967-10-17 Movible Offshore Inc Method of and apparatus for transporting, erecting, and salvaging off-shore structures
WO2002034664A1 (en) * 2000-10-25 2002-05-02 Nordex Gmbh A method of placing a crane in connection with a windmill
WO2010147481A1 (en) * 2009-06-16 2010-12-23 Dr. Techn. Olav Olsen As Wind turbine foundation for variable water depth
EP3078846A1 (en) * 2015-03-13 2016-10-12 ALSTOM Renewable Technologies Wind turbine parts handling method and device
ES2735881T3 (en) * 2016-07-01 2019-12-20 Vsl Int Ag Method to mount a wind turbine in a tower

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB202405378D0 (en) 2024-04-16 2024-05-29 Aker Solutions As Construction of jacket wind turbine foundations

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