WO2023052668A1 - Procedimiento de instalación de una torre y torre instalada con dicho procedimiento - Google Patents
Procedimiento de instalación de una torre y torre instalada con dicho procedimiento Download PDFInfo
- Publication number
- WO2023052668A1 WO2023052668A1 PCT/ES2022/070617 ES2022070617W WO2023052668A1 WO 2023052668 A1 WO2023052668 A1 WO 2023052668A1 ES 2022070617 W ES2022070617 W ES 2022070617W WO 2023052668 A1 WO2023052668 A1 WO 2023052668A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tower
- assembly
- crane
- length
- group
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 59
- 238000009434 installation Methods 0.000 claims description 20
- 239000004567 concrete Substances 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000011178 precast concrete Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- 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
- B66C23/185—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 for use erecting wind turbines
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/02—Structures made of specified materials
- E04H12/12—Structures made of specified materials of concrete or other stone-like material, with or without internal or external reinforcements, e.g. with metal coverings, with permanent form elements
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/728—Onshore wind turbines
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Definitions
- the present invention refers to a procedure for the installation and assembly of concrete towers, preferably with a frustoconical section.
- the procedure makes it possible to optimize the number of crane configurations used during said installation or assembly, consequently reducing the associated execution times and costs, or to build taller towers without increasing the number of necessary crane configurations.
- the invention also refers to a concrete tower installed and assembled with the aforementioned procedure.
- the nominal power of wind turbines has gradually increased, thanks to the increase in their rotor diameter, which in turn makes it essential to use taller towers for their support.
- This increase in height generally implies that the tower comprises different sections along its total length, which are placed one on top of the other to form its complete structure and which are, in turn, transportable from its point of manufacture to its final destination. installation point. For example, to assemble a 100 m high tower, five 20 m high sections can be stacked so that, with these dimensions, the sections are suitable for transport by road and/or rail.
- the total height of the tower is the total height of the tower.
- the weights of the complete sections of the tower of a 3 MW wind turbine can exceed 200 tons, which imposes severe requirements and constraints on the cranes used for its assembly.
- the use of these cranes supposes, in general, a high impact in execution times and costs, for two main reasons. In the first place, due to the low availability of this type of crane, which translates into a high daily rental cost. And, secondly, due to the high operational and logistical costs associated with transporting them, due to the large number of trucks required to move them.
- the cost of renting a tower crane can amount to €80,000 per week, together with the almost €100,000 that its transport generally costs (using at least forty trucks, conventionally). This limitation currently raises the need to find alternative means and procedures for the construction of wind turbine towers.
- cranes During the operation of a crane for the assembly of the towers, the configuration used depends, fundamentally, on two factors: the hoisting height and the individual weight of each one of the elements to be hoisted. In this sense, each of the elements of the crane must be arranged in an appropriate manner for said configuration, which is generally not valid for hoisting at other heights and weights.
- cranes comprise one or more height (or, commonly, “jib”) settings, which determine both the maximum lifting height and the maximum weight they can lift.
- Group 1 It is based on assembling, one by one, the voussoirs on the rest of the already assembled tower. However, this supposes a stability problem when the segments are not self-supporting. Also, this procedure requires a large number of of elevations and a complicated process of positioning and fastening the voussoirs, until a complete section is formed on the previous one, for the subsequent execution of the vertical joints, prior to the stacking of the voussoirs of the next section.
- one object of the present invention is to provide a procedure for the installation/assembly of concrete towers based on a plurality of pre-assembled tower segments (preferably as a succession of voussoirs, or similar modules), which reduces the number of configurations of necessary crane for lifting them, although it can also be used favorably for other types of towers.
- the invention is applicable to concrete towers with a frustoconical section, usually used to support the high moments at the base of the tower.
- its object is also achievable in other types of section configuration, such as cylindrical, polygonal, etc., or other materials such as steel.
- the present invention proposes a novel method of assembling concrete towers, which is essentially based on the optimization of the necessary crane configurations during said assembly, by means of an advantageous arrangement of the lengths and weights of the segments that are part of said tower.
- a tower built by superimposing two or more essentially tubular or frustoconical sections is obtained, although without limitation to other types of geometries, which comprises, at least: a) A base section: This section is assembled in the position of the tower, on its foundation and, preferably without the need for a large crane, constituting its lower segment attached to the ground. More preferably, said base section is made up of modules such as precast concrete segments. b) Two or more overlapping segments: These sections constitute the tower segments that are hoisted consecutively, stacking in height on the base section, using a large assembly crane. In a similar way to the base section of the tower, the overlapping segments are preferably formed by precast concrete voussoirs. However, the assembly of said voussoirs to constitute each of the sections is preferably carried out on the ground and, once assembled, they are hoisted as a complete section by means of a crane, in their final position in the tower.
- the present invention proposes a novel configuration of the overlapping segments of the tower, based on a selection of their individual lengths and weights, which makes it possible to optimize the crane operations necessary for the total hoisting of the tower components.
- Said selection comprises the definition of one or more "assembly groups", each integrated by one or more overlapping segments, where each assembly group is installed using a unique crane configuration.
- a certain model of assembly crane can adopt different configurations.
- a certain configuration is characterized, among other aspects, by the length used for the crane jib.
- the maximum load capacity of the crane varies, in general, depending on the configuration used.
- the maximum height at which the crane can mount a certain element also varies, being logically higher the greater the length of the jib used.
- the different lifting points of said sections in the tower will be at a lower level than the load point of the crane or, in other words, said lifting point will always be maintained at a higher level than the sections of the same assembly group.
- each of the overlapping segments in the same assembly group will have a maximum weight less than the maximum weight of the hoisting load admitted by the crane used with the configuration used for the installation of said assembly group.
- a first object of the invention refers to a procedure for installing a tower formed by superimposing two or more assembly groups on a base section, where at least one of said assembly groups is formed by a plurality of overlap segments; where said procedure comprises, at least, the following steps carried out in any technically possible order:
- the base section is arranged on its final position on the ground;
- At least one assembly crane is available for lifting and placing the tower assembly groups on the base section, said crane being capable of adopting different jib configurations and said configurations differing in at least the length (H ) of the crane jib and/or the threshold load weight value (W) of the crane;
- the overlapping sections are hoisted and arranged in their corresponding assembly groups, on the base section.
- At least two or more overlapping segments are installed consecutively in their corresponding assembly group with the same jib configuration of the assembly crane, where the length (I) of the lowest overlapping section of said group of assembly is less than the length (I) of at least one other overlapping section of said assembly group.
- a plurality or all of the assembly groups are formed by two or more overlapping segments. Said embodiment is convenient in high-rise towers, where all the assembly groups are made up of various construction elements.
- the base section has a length (I) greater than the length (I) of each of the overlapping segments.
- the length (I) of the base section exceeds the length (I) of at least one of the overlapping segments of the tower by at least 50.0 cm.
- the length (I) of the overlapping segment arranged immediately above the base section is equal to or less than the length of at least one other overlapping segment of the same assembly group.
- one or more of the overlapping segments or the base section are formed by cylindrical metal and/or concrete elements, with a continuous structure and/or shaped as voussoir joints.
- one or more of the overlapping segments are formed by voussoirs and said voussoirs are assembled at the foot of the tower.
- said procedure is applied to a tower with a height equal to or greater than 100.0 m.
- the tower comprises two assembly groups, and where each assembly group comprises two overlapping segments.
- a nacelle and/or wind turbine blades are installed on the upper mounting group.
- the assembly crane is of the mobile type.
- a crane other than the erection crane is used to install the base section of the tower.
- a second object of the invention refers to a tower manufactured by means of the method of the invention, according to any of the embodiments thereof described in the present document.
- said tower comprises, on the upper mounting group, a nacelle and/or one or more wind turbine blades.
- Figure 1 shows a tower installed according to the procedure of the invention, according to a preferred embodiment thereof, where its main elements are represented.
- Figure 2 shows a tower installed according to the procedures of the state of the art.
- each of said assembly groups (2, 2') comprises two overlapping segments (4, 5, 4', 5'), whose diameter or width decreases as the thickness increases. height.
- each of the segments (4, 5, 4', 5') can be defined by its hoisting height h ⁇ (that is, the height at which the upper end of each segment is installed).
- both the base stretch (3) and the segments (4, 5, 4', 5') preferably have a characteristic length l ⁇ and diameter d ⁇ .
- the hoisting weights (W4, ws) corresponding to the segments (4, 5) of the first assembly section (2) are equal to or less than the highest (W) of the boom load threshold values ( or “counterweight”) preset so that they can be effectively lifted by the crane using the selected boom configuration.
- the hoisting weights (W4', ws) corresponding to their respective segments (4' , 5') are less than or equal to the lesser (W) of the preset pen threshold values.
- each crane configuration is defined by its jib length P, the maximum hoisting height H reached with said jib length, and its corresponding maximum hoisting weight W.
- the method of the invention can reduce the number of overlapping segments (4, 4', 5, 5') needed in a tower (1) of a certain height that is to be assembled with a certain model of assembly crane, which translates into a greater efficiency and speed of assembly, by reducing the number of elements of the tower (1), with the corresponding reduction in costs.
- the base section (3) can have a greater length than the rest of the overlapping segments (4, 5, 4', 4'). With this, it is possible to obtain a more robust support structure for the tower (1) and reduce the weights of the segments (4, 5, 4', 4") that overlap the tower (1). More preferably, the length of the base section (3) is at least 50.0 cm greater than the length of at least one of the overlapping segments (4, 5, 4', 4") of said tower (1).
- the length of the overlapping segment (4) arranged immediately above the base section (3) is equal to or less than the length of at least one other overlapping segment (5) of the same group (2) of mounting.
- the method of the invention may comprise the use of overlapping segments (4, 5, 4', 4”) formed by metal and/or concrete tubes both in shape continuous as formed with voussoir joints. It is also possible to combine metal and concrete segments (4, 5, 4', 4”). In the event that the overlapping segments (4, 5, 4', 4”) are formed by voussoirs, these will preferably be assembled at the foot of the tower (1) for installation in the assembly.
- the base section (3) can also be built as a continuous element or as a plurality of voussoirs, and its manufacturing material will preferably comprise concrete.
- the installation procedure of the present invention is preferably applied to towers (1) with heights equal to or greater than 100.0 m, for which the reduction of crane configurations is a particularly valuable advantage.
- said towers comprise two assembly groups (2, 2'), where each group (2, 2') will comprise two overlapping segments (4, 5, 4', 4").
- the upper mounting group (2') comprises the nacelle and/or the blades of a wind turbine
- the crane used to install the tower is of the mobile type, for example with wheels or chains.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Sustainable Energy (AREA)
- Wood Science & Technology (AREA)
- Sustainable Development (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Gas-Insulated Switchgears (AREA)
- Electric Cable Installation (AREA)
- Jib Cranes (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Suspension Of Electric Lines Or Cables (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES202130921A ES2938008B2 (es) | 2021-10-01 | 2021-10-01 | Procedimiento de instalacion de una torre y torre instalada con dicho procedimiento |
ESP202130921 | 2021-10-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2023052668A1 true WO2023052668A1 (es) | 2023-04-06 |
Family
ID=85772178
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/ES2022/070617 WO2023052668A1 (es) | 2021-10-01 | 2022-09-29 | Procedimiento de instalación de una torre y torre instalada con dicho procedimiento |
Country Status (2)
Country | Link |
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ES (1) | ES2938008B2 (es) |
WO (1) | WO2023052668A1 (es) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES1058539U (es) * | 2004-10-11 | 2004-12-16 | Inneo21, S.L. | Estructura perfeccionada de torre modular para turbinas eolicas y otras aplicaciones. |
ES2350135A1 (es) * | 2008-07-04 | 2011-01-19 | STRUCTURAL CONCRETE & STEEL, S.L | Sistema de conexion para torres mixtas de aerogeneradores. |
ES2718873T3 (es) * | 2006-08-16 | 2019-07-05 | Nordex Towers Spain S L | Estructura y procedimiento de montaje de torres de hormigón para aerogeneradores |
ES1241584U (es) * | 2020-01-16 | 2020-02-19 | Nordex Energy Spain Sau | Torre eolica |
-
2021
- 2021-10-01 ES ES202130921A patent/ES2938008B2/es active Active
-
2022
- 2022-09-29 WO PCT/ES2022/070617 patent/WO2023052668A1/es unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES1058539U (es) * | 2004-10-11 | 2004-12-16 | Inneo21, S.L. | Estructura perfeccionada de torre modular para turbinas eolicas y otras aplicaciones. |
ES2718873T3 (es) * | 2006-08-16 | 2019-07-05 | Nordex Towers Spain S L | Estructura y procedimiento de montaje de torres de hormigón para aerogeneradores |
ES2350135A1 (es) * | 2008-07-04 | 2011-01-19 | STRUCTURAL CONCRETE & STEEL, S.L | Sistema de conexion para torres mixtas de aerogeneradores. |
ES1241584U (es) * | 2020-01-16 | 2020-02-19 | Nordex Energy Spain Sau | Torre eolica |
Non-Patent Citations (3)
Title |
---|
ANONYMOUS: "Greater lifting capacity with higher wind tolerance", LIEBHERR PRESS RELEASES, 26 April 2021 (2021-04-26), XP093056230, Retrieved from the Internet <URL:https://www.liebherr.com/en/int/latest-news/news-press-releases/detail/greater-lifting-capacity-with-higher-wind-tolerance.html> [retrieved on 20230621] * |
LIEBHERR: "Liebherr – LG 1750 with SX3 in wind power", YOUTUBE, 9 October 2021 (2021-10-09), XP093056285, Retrieved from the Internet <URL:https://www.bing.com/videos/riverview/relatedvideo?&q=LG+1750+with+SX3+in+wind+power&&mid=6AA64FBF67D79AC0847C6AA64FBF67D79AC0847C&&FORM=VRDGAR> [retrieved on 20230621] * |
LIEBHERR: "Liebherr - LR 11350 crawler crane with PowerBoom", YOUTUBE, 3 January 2015 (2015-01-03), XP093056274, Retrieved from the Internet <URL:https://www.bing.com/videos/riverview/relatedvideo?&q=liebherr+lr+11350+crawler&&mid=C1A24C356D98EB9A5A0AC1A24C356D98EB9A5A0A&&FORM=VRDGAR> [retrieved on 20230621] * |
Also Published As
Publication number | Publication date |
---|---|
ES2938008A1 (es) | 2023-04-03 |
ES2938008B2 (es) | 2024-04-16 |
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