WO2022052369A1 - 一种带月池圆筒型浮式风机平台 - Google Patents

一种带月池圆筒型浮式风机平台 Download PDF

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Publication number
WO2022052369A1
WO2022052369A1 PCT/CN2020/139475 CN2020139475W WO2022052369A1 WO 2022052369 A1 WO2022052369 A1 WO 2022052369A1 CN 2020139475 W CN2020139475 W CN 2020139475W WO 2022052369 A1 WO2022052369 A1 WO 2022052369A1
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Prior art keywords
platform
floating
moon pool
damping
plate
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PCT/CN2020/139475
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English (en)
French (fr)
Inventor
张新曙
李张翰熠
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上海交通大学
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Publication of WO2022052369A1 publication Critical patent/WO2022052369A1/zh

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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/50—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
    • B63B39/06—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by using foils acting on ambient water
    • B63B39/062—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by using foils acting on ambient water the foils being mounted on outriggers or the like, e.g. antidrift hydrofoils for sail boats
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • B63B2035/4433—Floating structures carrying electric power plants
    • B63B2035/446—Floating structures carrying electric power plants for converting wind energy into electric 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
    • Y02E10/70—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
    • Y02E10/727—Offshore 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 invention relates to the field of offshore wind power generation infrastructure, in particular to a cylindrical floating fan platform with a moon pool.
  • Fossil resources such as oil and natural gas are facing the challenge of clean energy such as wind energy and solar energy, and it is imperative to develop new sustainable energy. Gradually become an important source of electricity.
  • the onshore wind power generation technology is very mature, and the development of offshore wind energy is becoming the main development direction of wind energy. Since 2000, the newly installed capacity of global offshore wind power has continued to increase. As of 2019, the cumulative installed capacity of global offshore wind power reached 27.2GW. Due to technical and economic problems, the application of fixed offshore wind turbines is limited to sea areas with a water depth of less than 50m. In order to obtain better wind energy and expand space resources for wind energy development, floating wind turbine technology has received extensive attention in recent years.
  • the floating wind turbine puts forward higher requirements on the wave resistance performance of the platform foundation.
  • the floating wind turbine in the existing technology responds violently to the wave motion.
  • a floating wind turbine with a moon pond is required.
  • the foundation of the wind turbine platform uses the piston movement of the fluid inside the moon pool to restrain the platform heaving movement.
  • the purpose of the present invention is to provide a cylindrical floating fan platform with a moon pool in order to overcome the above-mentioned defects of the prior art.
  • a cylindrical floating fan platform with a moon pool comprising a wind turbine set, a wind power tower, a floating foundation and a mooring system arranged in sequence from top to bottom, wherein the floating foundation is a circular shape with a moon pool. Cylindrical floating platform.
  • the moon pool is a vertical communication opening that penetrates the top plate and the bottom plate of the floating platform and has a circular cross-section.
  • the lower part of the outer plate of the floating platform is provided with a horizontal damping and damping plate, and the damping and damping plate is arranged around the outer periphery of the floating platform.
  • the outer peripheral line of the damping damping plate is a polygon, and circumferential and radial reinforcing ribs are arranged on the upper surface of the damping damping plate, and reinforcing plates are arranged on the diagonal lines of the polygon.
  • an inclined support beam is arranged between the damping and swaying plate and the floating body, and both ends of the supporting beam are respectively located on the outer surface of the floating body and the upper surface of the reinforcing plate.
  • the wind generator set is installed on the top of the wind power tower, and the wind generator set includes a wind wheel, a nacelle, a tail compartment and a base revolving body, and the nacelle and the wind power tower are movable through the base revolving body connected and rotatable around the central axis of the wind power tower.
  • the wind wheel includes blades, a hub and a rotor shaft
  • the hub is located outside the nacelle, and the blades are mounted on the hub.
  • a fence surrounding the outside of the nacelle is provided on the upper side of the rotating body of the machine base.
  • the tail cabin is located at the rear of the base revolving body and is connected to the base revolving body.
  • the mooring system includes three nylon catenary lines, the catenary lines form an included angle of 120° with each other, and the floating platform is connected to the seabed through the mooring system.
  • the present invention has the following advantages:
  • the design of the circular opening moon pond can make the heave motion RAO (heaving motion response) of the floating fan platform under the action of a certain frequency of waves close to zero, thus restraining the floating platform under the waves to a certain extent.
  • the motion response greatly improves the safety of the platform.
  • the cylindrical platform has geometric symmetry and is not sensitive to the direction of wind, waves and currents.
  • the horizontal damping damping plate on the outside of the floating platform can increase the additional mass and damping of the floating platform during heave motion, effectively reduce the response amplitude of the platform heave, and improve the safety of the platform.
  • the mooring system adopts three high-tension nylon catenary lines, which reduces the construction cost of the mooring system compared with the traditional steel anchor chain. The lower stretch is reduced, indicating that the mooring line does not need to be re-tightened in extreme sea conditions, thereby reducing the workload of subsequent platform maintenance.
  • Fig. 1 is the overall appearance schematic diagram of the device of the present invention
  • Fig. 2 is the schematic diagram of the wind turbine in the device of the present invention.
  • FIG 3 is a schematic diagram of a horizontal damping damping plate in the device of the present invention.
  • the present application proposes a cylindrical floating fan platform with a moon pool.
  • the floating fan floats on the sea surface and includes a wind turbine 7 , a wind power tower 3 , a floating foundation and a mooring system 6 .
  • the floating foundation is a cylindrical floating platform provided with a circular moon pool 1, and the moon pool 1 is a vertical communication opening that penetrates the top and bottom plates of the floating platform and has a circular cross-section.
  • the wind power tower 3 is fixed on the top plate of the floating fan platform, and there are tower doors and windows 4 at the bottom of the tower near the top plate of the floating platform, which is convenient for personnel to enter and exit the tower.
  • the wind turbine 7 is installed on the top of the wind power tower 3 , and the wind turbine 7 includes a fence 11 , a nacelle 10 , a wind wheel, a machine base slewing body 12 , and a tail cabin 9 .
  • the rotor includes blades 5 , a hub 8 , and a rotor shaft.
  • the hub 8 is located outside the nacelle 10 , and the blades 5 are mounted on the hub 8 .
  • the nacelle 10 includes a generator and a transmission device.
  • the nacelle 10 is movably connected with the wind power tower 3 and can rotate around the central axis of the wind power tower 3 .
  • the swivel body 12 of the base supports the entire wind turbine and the nacelle 10 and makes it freely swivel at the upper end of the tower.
  • the tail cabin 9 is located behind the base revolving body 12 and is connected to the revolving body. Its main function is to adjust the direction of the fan so that the fan is facing the wind direction, and at the same time, in the case of strong winds, the head of the wind turbine deviates from the wind direction, so as to reduce the speed and protect the fan. effect.
  • the fence 11 is located outside the engine room 10 to facilitate personnel to enter and exit the interior of the engine room 10 for maintenance work.
  • the lower part of the outer plate of the floating platform is provided with a horizontal damping and damping plate 2 , and the damping and damping plate 2 is arranged around the outer periphery of the floating platform.
  • the outer peripheral line of the damping and damping plate 2 is a polygon, and the upper surface is provided with circumferential and radial reinforcing ribs 15, and at the same time, a reinforcing plate 13 is arranged on the diagonal line of the polygon.
  • An inclined support beam 14 is arranged between the damping and damping plate 2 and the floating body to strengthen the structural strength.
  • the mooring system 6 is composed of three catenary lines in the form of high-tensile woven nylon material, and the three catenary lines form an included angle of 120° with each other, and the floating platform is connected to the seabed through the mooring system 6 .
  • the design of the cylindrical floating platform with the central circular moon pool 1 can not only reduce the manufacturing cost, but also reduce the workload of subsequent platform maintenance.
  • Design, under the action of waves of a certain frequency, the heave motion RAO (heaving motion response) of the floating wind turbine platform is close to zero, which inhibits the motion response of the floating platform under the waves to a certain extent, and greatly improves the performance.

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

Abstract

一种带有月池（1）的圆筒型浮式风机平台，包括从上到下依次设置的风电机组（7）、风电塔筒（3）、浮式基础和系泊系统（6），浮式基础为设有月池的圆筒型浮式平台。月池为贯穿浮式平台顶板和底板、截面为圆形的垂向连通开口。该平台增加中心圆形月池的圆筒型浮式平台设计不仅可以降低制造成本，降低后续平台维护的工作量，同时，由于平台中部的开口月池设计，浮式风机平台在某一频率的波浪作用下，其垂荡运动响应接近于零，因而一定程度上抑制了浮式平台在海浪下的运动响应，极大地提高了平台的安全性。

Description

一种带月池圆筒型浮式风机平台 技术领域
本发明涉及海上风力发电基础设施领域，尤其是涉及一种带月池圆筒型浮式风机平台。
背景技术
石油天然气等化石资源正面对风能、太阳能等清洁能源的挑战，开发新的可持续能源势在必行，而风能作为一种清洁的可再生能源，其蕴量巨大，已受到世界各国关注，正逐步成为重要的电力来源。目前，陆上风力发电技术已经非常成熟，海上风能的开发正成为风能的主要发展方向。从2000年来，全球海上风电新增装机容量持续增加。截至2019年，全球海上风电累积装机容量达27.2GW。固定式的海上风机因为技术和经济问题，其运用被限制在50m水深以内的海域，为了获得更优质的风能以及拓展风能发展的空间资源，漂浮式风机技术近年来得到广泛关注。
然而，面对多变的海洋环境，浮式风机对平台基础的耐波性能提出了更高的要求，现有技术下浮式风机对波浪运动响应剧烈，针对这一问题，需要带有月池的浮式风机平台基础，利用月池内部流体的活塞运动，抑制平台垂荡运动。
发明内容
本发明的目的就是为了克服上述现有技术存在的缺陷而提供一种带月池圆筒型浮式风机平台。
本发明的目的可以通过以下技术方案来实现：
一种带有月池的圆筒型浮式风机平台，包括从上到下依次设置的风电机组、风电塔筒、浮式基础和系泊系统，所述浮式基础为设有月池的圆筒型浮式平台。
优选的，所述月池为贯穿浮式平台顶板和底板、截面为圆形的垂向连通开口。
优选的，所述浮式平台的外侧板下部设有水平阻尼减荡板，所述阻尼减荡 板围绕所述浮式平台的外周设置。
优选的，所述阻尼减荡板外周线为多边形，所述阻尼减荡板上表面布置有周向和径向的加强筋，同时在多边形对角线上布置有加强板。
优选的，所述阻尼减荡板与浮体之间设有倾斜支撑梁，所述支撑梁的两端分别位于浮体外侧表面与加强板的上表面。
优选的，所述风电机组安装在所述风电塔筒的顶部，所述风电机组包括风轮、机舱、尾舱和机座回转体，所述机舱与所述风电塔筒通过机座回转体活动连接，并可绕所述风电塔筒的中心轴旋转。
优选的，所述风轮包括叶片、轮毂和风轮轴，所述轮毂位于机舱外，所述叶片安装在所述轮毂上。
优选的，所述机座回转体的上侧设有围绕机舱外侧的围栏。
优选的，所述尾舱位于所述机座回转体的后方，并与机座回转体相连。
优选的，所述系泊系统包括三根尼龙材质的悬链线，所述悬链线彼此成120°夹角，所述浮式平台通过所述系泊系统与海床连接。
与现有技术相比，本发明具有以下优点：
1、圆形开口月池设计，可以使得浮式风机平台在某一频率的波浪作用下的垂荡运动RAO(垂荡运动响应)接近于零，因而一定程度上抑制了浮式平台在海浪下的运动响应，极大地提高了平台的安全性。
2、圆筒型平台具有几何对称性，对风浪流方向不敏感。
3、浮式平台外侧的水平阻尼减荡板可以增大浮式平台垂荡运动时的附加质量和阻尼，有效减小平台垂荡的响应幅值，提高平台的安全性。
4、系泊系统采用三根高张力编制尼龙材质的悬链线，相较于传统的钢制锚链，降低了系泊系统的建造成本，同时高张力尼龙材料制成的系泊线在同等海况下拉伸度减小，表明该系泊线在极端海况下无需重新拉紧，从而减轻了后续平台维护的工作量。
附图说明
图1为本发明装置的整体外观示意图；
图2为本发明装置中风电机组示意图；
图3为本发明装置中水平阻尼减荡板示意图。
图中标注：1、月池，2、阻尼减荡板，3、风电塔筒，4、塔筒门窗，5、叶片，6、系泊系统，7、风电机组，8、轮毂，9、尾舱，10、机舱，11、围栏，12、机座回转体，13、加强板，14、支撑梁，15、加强筋。
具体实施方式
下面结合附图和具体实施例对本发明进行详细说明。本实施例以本发明技术方案为前提进行实施，给出了详细的实施方式和具体的操作过程，但本发明的保护范围不限于下述的实施例。
实施例
如图1所示，本申请提出一种带月池圆筒型浮式风机平台，浮式风机漂浮于海面上，包括风电机组7、风电塔筒3、浮式基础和系泊系统6。浮式基础为设有圆形月池1的圆筒型浮式平台，月池1为贯穿浮式平台顶板和底板、截面为圆形的垂向连通开口。
如图2所示，风电塔筒3固定在浮式风机平台的顶板上，塔筒底端靠近浮式平台顶板处有塔筒门窗4设置，方便人员进出塔筒。
风电机组7安装在风电塔筒3顶部，风电机组7包括围栏11、机舱10、风轮、机座回转体12、尾舱9。风轮包括叶片5、轮毂8、风轮轴，轮毂8位于机舱10外，叶片5安装在轮毂8上。机舱10包括发电机和传动装置，机舱10与风电塔筒3活动连接并可绕风电塔筒3的中心轴旋转，主机设置在机舱10内并与轮毂8连接。机座回转体12支撑整个风轮与机舱10，并使其在塔架上端自由回转。尾舱9位于机座回转体12后方，与回转体相连，主要作用为调节风机转向，使风机正对风向，同时在大风情况下使风力机机头偏离风向，以达到降低转速、保护风机的作用。围栏11位于机舱10外侧，方便人员进出机舱10内部进行检修工作。
如图3所示，浮式平台外侧板下部设有水平阻尼减荡板2，阻尼减荡板2围绕浮式平台的外周设置。阻尼减荡板2外周线为多边形，上表面布置有周向和径向的加强筋15，同时位于多边形对角线上布置有加强板13。阻尼减荡板2与浮体之间布置有倾斜支撑梁14进行结构强度加强，支撑梁14两端分别位于 浮体外侧表面与加强板13上表面。
系泊系统6由三根高张力编制尼龙材质形式的悬链线组成，三根悬链线彼此成120°夹角，浮式平台通过系泊系统6与海床连接。
与现有浮式风机平台相比，本增加中心圆形月池1的圆筒型浮式平台设计不仅可以降低制造成本，降低后续平台维护的工作量，同时，由于平台中部的开口月池1设计，浮式风机平台在某一频率的波浪作用下，其垂荡运动RAO(垂荡运动响应)接近于零，因而一定程度上抑制了浮式平台在海浪下的运动响应，极大地提高了平台的安全性。

Claims (10)

  1. 一种带有月池的圆筒型浮式风机平台，包括从上到下依次设置的风电机组(7)、风电塔筒(3)、浮式基础和系泊系统(6)，其特征在于，所述浮式基础为设有月池(1)的圆筒型浮式平台。
  2. 根据权利要求1所述的一种带有月池的圆筒型浮式风机平台，其特征在于，所述月池(1)为贯穿浮式平台顶板和底板、截面为圆形的垂向连通开口。
  3. 根据权利要求1所述的一种带有月池的圆筒型浮式风机平台，其特征在于，所述浮式平台的外侧板下部设有水平阻尼减荡板(2)，所述阻尼减荡板(2)围绕所述浮式平台的外周设置。
  4. 根据权利要求3所述的一种带有月池的圆筒型浮式风机平台，其特征在于，所述阻尼减荡板(2)外周线为多边形，所述阻尼减荡板(2)上表面布置有周向和径向的加强筋(15)，同时在多边形对角线上布置有加强板(13)。
  5. 根据权利要求4所述的一种带有月池的圆筒型浮式风机平台，其特征在于，所述阻尼减荡板(2)与浮体之间设有倾斜支撑梁(14)，所述支撑梁(14)的两端分别位于浮体外侧表面与加强板(13)的上表面。
  6. 根据权利要求1所述的一种带有月池的圆筒型浮式风机平台，其特征在于，所述风电机组(7)安装在所述风电塔筒(3)的顶部，所述风电机组(7)包括风轮、机舱(10)、尾舱(9)和机座回转体(12)，所述机舱(10)与所述风电塔筒(3)通过机座回转体(12)活动连接，并可绕所述风电塔筒(3)的中心轴旋转。
  7. 根据权利要求6所述的一种带有月池的圆筒型浮式风机平台，其特征在于，所述风轮包括叶片(5)、轮毂(8)和风轮轴，所述轮毂(8)位于机舱(10)外，所述叶片(5)安装在所述轮毂(8)上。
  8. 根据权利要求6所述的一种带有月池的圆筒型浮式风机平台，其特征在于，所述机座回转体(12)的上侧设有围绕机舱(10)外侧的围栏(11)。
  9. 根据权利要求6所述的一种带有月池的圆筒型浮式风机平台，其特征在 于，所述尾舱(9)位于所述机座回转体(12)的后方，并与机座回转体(12)相连。
  10. 根据权利要求1所述的一种带有月池的圆筒型浮式风机平台，其特征在于，所述系泊系统(6)包括三根尼龙材质的悬链线，所述悬链线彼此成120°夹角，所述浮式平台通过所述系泊系统(6)与海床连接。
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