WO2022142415A1 - Semi-submersible offshore wind turbine unit, foundation and heave plate - Google Patents

Semi-submersible offshore wind turbine unit, foundation and heave plate Download PDF

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Publication number
WO2022142415A1
WO2022142415A1 PCT/CN2021/114894 CN2021114894W WO2022142415A1 WO 2022142415 A1 WO2022142415 A1 WO 2022142415A1 CN 2021114894 W CN2021114894 W CN 2021114894W WO 2022142415 A1 WO2022142415 A1 WO 2022142415A1
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WIPO (PCT)
Prior art keywords
heave plate
semi
foundation
wind turbine
submersible
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PCT/CN2021/114894
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French (fr)
Chinese (zh)
Inventor
周昳鸣
郭小江
陈晓路
杭兆峰
管春雨
刘溟江
姚中原
曾崇济
穆延非
张波
杨立华
王有超
赵剑剑
叶昭良
卢坤鹏
Original Assignee
华能国际电力股份有限公司江苏清洁能源分公司
中国华能集团清洁能源技术研究院有限公司
华能盐城大丰新能源发电有限责任公司
华能海上风电科学技术研究有限公司
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Application filed by 华能国际电力股份有限公司江苏清洁能源分公司, 中国华能集团清洁能源技术研究院有限公司, 华能盐城大丰新能源发电有限责任公司, 华能海上风电科学技术研究有限公司 filed Critical 华能国际电力股份有限公司江苏清洁能源分公司
Publication of WO2022142415A1 publication Critical patent/WO2022142415A1/en

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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
    • 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
    • F03D13/22—Foundations specially adapted for 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
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20—Wind motors characterised by the driven apparatus
    • F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
    • 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

Definitions

  • the invention belongs to the technical field of power generation steel tower design, and particularly relates to a semi-submersible offshore fan unit, a foundation and a heave plate.
  • the heave plate (5) of the existing semi-submersible fan foundation is mostly a complete circular plate structure, with a large mass, and the wet area of the outer edge of the structure in contact with water is small, providing The additional hydrodynamic damping and added mass are small and do not play the role of the heave plate well.
  • the present invention provides a heave plate for the foundation of a semi-submersible wind turbine.
  • the heave plate of the semi-submersible wind turbine is used for uniformity. Opening holes reduces the weight of the structure and increases the hydrodynamic damping and additional mass of the heave plate when it moves up and down, thereby improving the stability of the floating fan foundation.
  • the technical scheme adopted in the present invention is: a heave plate for the foundation of a semi-submersible fan, and a plurality of through holes are evenly opened along the circumferential direction of the heave plate.
  • D1 is the diameter of the main buoy
  • D2 is the diameter of the heave plate.
  • the through holes are opened along the two circumferences of the heave plate, and the through holes on the two circles are arranged in a staggered manner.
  • the thickness is 25-60mm, and the diameter is 1.5m-2m larger than the diameter of the buoy.
  • the foundation of the semi-submersible wind turbine includes a heave plate and a main buoy; the heave plate adopts the heave plate of claim 1, the heave plate is coaxially arranged at the bottom of the main buoy, and there are at least three main buoys, and one of the two main buoys is installed.
  • the surfaces of the main buoy, diagonal braces, transverse braces and heave plates are all provided with anti-corrosion layers.
  • the ratio of the diameter of the main buoy to the diameter of the heave plate shall not be less than 1.2.
  • a semi-submersible offshore wind generator set adopts the semi-submersible fan foundation of the present invention, a tower is arranged on the central axis of the semi-submersible fan foundation, and the tower and the main buoy are connected by diagonal braces and transverse braces.
  • the present invention at least has the following beneficial effects:
  • the invention reduces the mass of the heave plate after the opening of the heave plate, and increases the wet area of the outer edge of the structure in contact with water, so the heave plate of the semi-submersible fan foundation with the opening of the invention can be
  • the additional hydrodynamic damping provided increases the additional mass of the entire structure and effectively improves the motion performance of the floating fan.
  • Figure 1 is a schematic diagram of the foundation of the floating fan.
  • Figure 2 is a schematic structural diagram of the semi-submersible wind turbine foundation main buoy and 8-hole heave plate.
  • Figure 3 is a schematic front view of the basic main buoy and the 8-hole heave plate of the floating fan.
  • Figure 4 is a schematic side view of the main buoy and the 8-hole heave plate of the floating fan base.
  • Figure 5 is a schematic top view of the base main buoy and the 8-hole heave plate of the floating fan.
  • Figure 6 is a schematic top view of the basic main buoy and the 16-hole heave plate of the floating fan.
  • Figure 7 is a schematic top view of the base main buoy and the 24-hole heave plate of the floating fan.
  • 1-main buoy 2-tower, 3-diagonal brace, 4-cross brace, 5-heave plate, 6-through hole.
  • FIGS. 1 , 2 , 3 , 4 , and 5 in which exemplary embodiments of the present invention are shown.
  • D1 is the diameter of the main buoy
  • D2 is the diameter of the heave plate 5 .
  • the through holes 6 are opened along the three circumferences of the heave plate, and the through holes 6 on two adjacent circles are arranged in a staggered manner, r3>r2'>r1", r1" is the through hole 6 whose center is located in the inner circle
  • the radius of the circle, r3 is the radius of the circle where the through hole 6 is located in the outer ring
  • r2' is the radius of the circle where the through hole 6 is located between the inner ring and the outer ring;
  • the structure of the heave plate 5 can refer to the figure It should be understood that in the structure of the heave plate 5 shown in FIG. 7 , r1 marks the radius of the circle where the through hole 6 is located in the inner ring, and r2 marks the radius of the circle where the through hole 6 between the inner ring and the outer ring is located.
  • the thickness of the heave plate 5 is 25-60mm, and the diameter of the heave plate 5 is 1.5m-2m larger than the diameter of the main buoy 1 .
  • the semi-submersible fan foundation includes a heave plate 5 and a main buoy 1; the heave plate 5 adopts the heave plate of any of the above-mentioned embodiments, and the heave plate 5 is coaxially arranged at the bottom of the main buoy 1, and the main buoy 1 is at least There are three, and diagonal braces 3 and transverse braces 4 are arranged between the two main buoys 1 .
  • the surfaces of the main buoy 1, the diagonal braces 3, the transverse braces 4 and the heave plates 5 are all provided with anti-corrosion layers.
  • the ratio of the diameter of the main buoy 1 to the diameter of the heave plate 5 is not less than 1.2.
  • a semi-submersible fan foundation with openings proposed by the present invention includes a main buoy 1, a tower 2, a diagonal brace 3, a transverse brace 4, a heave plate 5, and a heave plate 5 along its circumference
  • a through hole 6 is set in the direction, the diameter of the main buoy 1 is D1, the diameter of the heave plate 5 is D2, and the center O of the main buoy 1 and the heave plate 5 are the same.
  • Eight through holes 6 are evenly opened on a circle whose distance from the center O is r1, that is, the distance between the center of the through hole 6 and the center of the main buoy 1 is r1, and the arc between the centers of two adjacent through holes 6 on the same circumference is The corresponding radian is ⁇ /4.
  • the through holes 6 on the plane of the heave plate 5 are uniformly distributed circular holes, the number and diameter of which can be adjusted according to specific application scenarios.
  • FIG. 6 and FIG. 7 respectively show an embodiment of a floating fan base main buoy and a heave plate with 16 through holes and a floating fan base main buoy and a heave plate with 24 through holes.
  • Holes are evenly opened on the heave plate 5, and the number and position of the through holes 6 can be adjusted according to specific project requirements.
  • Figure 2 shows the structure of an 8-hole heave plate for the foundation of a semi-submersible wind turbine.
  • Figure 6 shows the top view of the 16-hole heave plate on the foundation of the semi-submersible fan.
  • the distance between the center of the through hole 6 and the center of the main buoy 1 is r1 and r2, r2>r1, and the distance between the centers of two adjacent through holes 6 on the same circle is r1 and r2.
  • the arc corresponding to radian is ⁇ /4.
  • Figure 7 shows the top view of the 24-hole heave plate of the semi-submersible fan foundation.
  • the distance between the center of the through hole 6 and the center of the main buoy 1 is r1, r2 and r3, r3>r2>r1, two adjacent through holes 6 on the same circumference
  • the arcs between the centers of the circles correspond to radians of ⁇ /4.
  • the heave plate 5 based on the opening of the semi-submersible fan proposed by the present invention can provide additional Hydrodynamic damping increases the additional mass of the entire structure and effectively improves the motion performance of the floating fan.
  • the semi-submersible wind turbine foundation is used for the semi-submersible offshore wind turbine
  • the tower 2 is arranged on the central axis of the semi-submersible wind turbine foundation
  • the tower 2 and the main buoy 1 pass through the diagonal braces 3 and The cross brace 4 is connected.

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

Abstract

Provided are a semi-submersible wind turbine foundation and heave plate. The semi-submersible wind turbine foundation comprises heave plates (5) and at least three main buoys (1), wherein a plurality of through holes (6) are evenly provided in the circumferential direction of the heave plate (5), the heave plates (5) are coaxially arranged at the bottoms of the main buoys (1), and inclined struts (3) and transverse struts (4) are arranged between every two main buoys (1). After holes are provided on the heave plates (5), the mass of the heave plates (5) is reduced, and extra hydrodynamic damping is provided to increase the additional mass of the whole structure, thereby effectively improving the motion performance of the floating-type wind turbine. Further provided is a semi-submersible offshore wind turbine unit comprising the semi-submersible wind turbine foundation.

Description

一种半潜式海上风机机组、基础以及垂荡板A semi-submersible offshore wind turbine unit, foundation and heave plate
本申请要求于2020年12月30日提交中国专利局、申请号为202011627292.3、发明名称为“一种半潜式海上风机机组、基础以及垂荡板”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。This application claims the priority of the Chinese patent application filed on December 30, 2020 with the application number 202011627292.3 and the invention title "A semi-submersible offshore wind turbine, foundation and heave plate", the entire contents of which are Incorporated herein by reference.
技术领域technical field
本发明属于力发电钢制塔架设计技术领域，具体涉及一种半潜式海上风机机组、基础以及垂荡板。The invention belongs to the technical field of power generation steel tower design, and particularly relates to a semi-submersible offshore fan unit, a foundation and a heave plate.
背景技术Background technique
随着风能资源开发的不断扩大，尤其在深海处的开发，使得漂浮式风力机的研究备受重视。常用的漂浮式基础有Spar基础、TLP基础和半潜式基础等。在沿海水深较浅处，考虑平台的水深适用性和系泊结构的造价，半潜式风机基础凭其良好的稳定性、可制造性和便于湿拖安装等优点，受到了广泛关注。With the continuous expansion of the development of wind energy resources, especially in the deep sea, the research on floating wind turbines has attracted much attention. Commonly used floating foundations include Spar foundation, TLP foundation and semi-submersible foundation. In the shallow coastal waters, considering the water depth applicability of the platform and the cost of the mooring structure, the semi-submersible wind turbine foundation has received extensive attention due to its advantages of good stability, manufacturability and easy wet drag installation.
通常半潜式平台需要把主浮筒的尺寸设计的较大，依靠大吃水保证垂荡固有周期远大于波浪周期。在半潜式平台主浮筒下放设置垂荡板可以避免平台和波浪产生共振，使平台拥有良好的运动性能。垂荡板提高的附加质量能增大平台的垂荡自振周期，使之远离波能集中频段；而提供的额外阻尼可有效降低平台的动态响应，提高平台的运动性能。Usually semi-submersible platforms need to design larger size of main buoy, relying on large draft to ensure that the natural period of heave is much larger than the wave period. Setting the heave plate under the main buoy of the semi-submersible platform can avoid the resonance between the platform and the waves, so that the platform has good motion performance. The additional mass increased by the heave plate can increase the heave natural oscillation period of the platform, and keep it away from the frequency band where the wave energy is concentrated; and the additional damping provided can effectively reduce the dynamic response of the platform and improve the motion performance of the platform.
如图1所示，目前已有的半潜式风机基础的垂荡板(5)大都是完整的圆板结构，质量较大，且结构外边缘轮廓与水接触的湿面积较小，提供的额外的水动力阻尼和附加质量较小，没有很好的发挥垂荡板的作用。As shown in Fig. 1, the heave plate (5) of the existing semi-submersible fan foundation is mostly a complete circular plate structure, with a large mass, and the wet area of the outer edge of the structure in contact with water is small, providing The additional hydrodynamic damping and added mass are small and do not play the role of the heave plate well.
发明内容SUMMARY OF THE INVENTION
为了解决现有技术中存在的问题，本发明提供一种用于半潜式风机基础的垂荡板，考虑结构的对称性和受力的均匀性，在半潜式风机垂荡板上进行均匀开孔，减少结构的重量，增加垂荡板在上下运动时的水动力阻尼和附加质量，从而提高了浮式风机基础的稳定性。In order to solve the problems existing in the prior art, the present invention provides a heave plate for the foundation of a semi-submersible wind turbine. Considering the symmetry of the structure and the uniformity of the force, the heave plate of the semi-submersible wind turbine is used for uniformity. Opening holes reduces the weight of the structure and increases the hydrodynamic damping and additional mass of the heave plate when it moves up and down, thereby improving the stability of the floating fan foundation.
为了实现上述目的，本发明采用的技术方案是：一种用于半潜式风机 基础的垂荡板，沿垂荡板的圆周方向均匀开设若干个通孔。In order to achieve the above-mentioned purpose, the technical scheme adopted in the present invention is: a heave plate for the foundation of a semi-submersible fan, and a plurality of through holes are evenly opened along the circumferential direction of the heave plate.
通孔的数量为8n个，n＝1，2，……16；同一圆周上开设8个通孔，当n大于或等于2时，相邻两个圆上的通孔错位布置。The number of through holes is 8n, n=1, 2, ...... 16; 8 through holes are opened on the same circle, and when n is greater than or equal to 2, the through holes on two adjacent circles are dislocated.
n＝1时，通孔所在圆周的半径为r1＝0.25×D2+0.25×D1，D1是主浮筒的直径，D2是垂荡板的直径。When n=1, the radius of the circle where the through hole is located is r1=0.25×D2+0.25×D1, D1 is the diameter of the main buoy, and D2 is the diameter of the heave plate.
n＝2时，通孔沿垂荡板的两个圆周开设，两个圆上的通孔交错布置，r1-D1/2＝r2-r1’，r2＞r1’，r2为圆心位于外圆的通孔所在圆的半径。When n=2, the through holes are opened along the two circumferences of the heave plate, and the through holes on the two circles are arranged in a staggered manner. The radius of the circle where the via is located.
n＝3时，通孔沿垂荡板的三个圆周开设，相邻两个圆上的通孔交错布置，r3＞r2’＞r1”，r1”为圆心位于内圈的通孔所在圆的半径，r3为圆心位于外圈的通孔所在圆的半径，r2’为内圈与外圈之间通孔所在圆的半径。When n=3, the through holes are opened along the three circumferences of the heave plate, and the through holes on two adjacent circles are arranged in a staggered manner, r3>r2'>r1", r1" is the circle where the through hole whose center is located in the inner ring is located. Radius, r3 is the radius of the circle where the through hole is located in the outer ring, r2' is the radius of the circle where the through hole is located between the inner ring and the outer ring.
厚度为25-60mm，直径大于浮筒直径1.5m-2m。The thickness is 25-60mm, and the diameter is 1.5m-2m larger than the diameter of the buoy.
半潜式风机基础，包括垂荡板和主浮筒；垂荡板采用权利要求1所述垂荡板，垂荡板同轴设置在主浮筒底部，主浮筒至少设置有三个，两个主浮筒之间设置斜撑和横撑。The foundation of the semi-submersible wind turbine includes a heave plate and a main buoy; the heave plate adopts the heave plate of claim 1, the heave plate is coaxially arranged at the bottom of the main buoy, and there are at least three main buoys, and one of the two main buoys is installed. Set up diagonal braces and horizontal braces.
主浮筒、斜撑、横撑和垂荡板的表面均设有防腐蚀层。The surfaces of the main buoy, diagonal braces, transverse braces and heave plates are all provided with anti-corrosion layers.
主浮筒的直径与垂荡板的直径之比不小于1.2。The ratio of the diameter of the main buoy to the diameter of the heave plate shall not be less than 1.2.
一种半潜式海上风电机组，采用本发明所述半潜式风机基础，塔架设置在半潜式风机基础的中心轴线上，塔架与主浮筒通过斜撑以及横撑连接。A semi-submersible offshore wind generator set adopts the semi-submersible fan foundation of the present invention, a tower is arranged on the central axis of the semi-submersible fan foundation, and the tower and the main buoy are connected by diagonal braces and transverse braces.
与现有技术相比，本发明至少具有以下有益效果：Compared with the prior art, the present invention at least has the following beneficial effects:
本发明在垂荡板上开孔后减少了垂荡板的质量，并且增加了结构外边缘轮廓与水接触的湿面积，因此本发明提出的开孔的半潜式风机基础的垂荡板可以提供的额外的水动力阻尼，增大整个结构的附加质量，有效提高漂浮式风机的运动性能。The invention reduces the mass of the heave plate after the opening of the heave plate, and increases the wet area of the outer edge of the structure in contact with water, so the heave plate of the semi-submersible fan foundation with the opening of the invention can be The additional hydrodynamic damping provided increases the additional mass of the entire structure and effectively improves the motion performance of the floating fan.
附图说明Description of drawings
下面结合附图对本发明的示例性实施例进行详细描述，本发明的以上和其它特点及优点将变得更加清楚，附图中：The above and other features and advantages of the present invention will become more apparent from the following detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, in which:
图1为漂浮式风机基础示意图。Figure 1 is a schematic diagram of the foundation of the floating fan.
图2为半潜式风机基础主浮筒及8孔垂荡板结构示意图。Figure 2 is a schematic structural diagram of the semi-submersible wind turbine foundation main buoy and 8-hole heave plate.
图3为漂浮式风机基础主浮筒及8孔垂荡板正视示意图。Figure 3 is a schematic front view of the basic main buoy and the 8-hole heave plate of the floating fan.
图4为漂浮式风机基础主浮筒及8孔垂荡板侧视示意图。Figure 4 is a schematic side view of the main buoy and the 8-hole heave plate of the floating fan base.
图5为漂浮式风机基础主浮筒及8孔垂荡板俯视示意图。Figure 5 is a schematic top view of the base main buoy and the 8-hole heave plate of the floating fan.
图6为漂浮式风机基础主浮筒及16孔垂荡板俯视示意图。Figure 6 is a schematic top view of the basic main buoy and the 16-hole heave plate of the floating fan.
图7为漂浮式风机基础主浮筒及24孔垂荡板俯视示意图。Figure 7 is a schematic top view of the base main buoy and the 24-hole heave plate of the floating fan.
附图中，1-主浮筒，2-塔架，3-斜撑，4-横撑，5-垂荡板，6-通孔。In the drawings, 1-main buoy, 2-tower, 3-diagonal brace, 4-cross brace, 5-heave plate, 6-through hole.
具体实施方式Detailed ways
下面结合图1、图2、图3、图4、图5对本发明做详细叙述，在附图中示出了本发明的实例性实施例。The present invention will be described in detail below with reference to FIGS. 1 , 2 , 3 , 4 , and 5 , in which exemplary embodiments of the present invention are shown.
参考图2，本发明提供的用于半潜式风机基础的垂荡板，沿圆周方向均匀开设若干个通孔6；通孔6的数量为8n个，n＝1，2，……16；同一圆周上开设8个通孔6，当n大于或等于2时，相邻两个圆上的通孔错位布置。Referring to FIG. 2 , the heave plate for the foundation of the semi-submersible fan provided by the present invention has several through holes 6 evenly opened along the circumferential direction; the number of through holes 6 is 8n, n=1, 2, ...... 16; Eight through holes 6 are opened on the same circle, and when n is greater than or equal to 2, the through holes on two adjacent circles are arranged in dislocation.
n＝1时，通孔6所在圆周的半径为r1＝0.25×D2+0.25×D1，D1是主浮筒的直径，D2是垂荡板5的直径。When n=1, the radius of the circle where the through hole 6 is located is r1=0.25×D2+0.25×D1, D1 is the diameter of the main buoy, and D2 is the diameter of the heave plate 5 .
n＝2时，通孔6沿垂荡板5的两个圆周开设，两个圆上的通孔6交错布置，r1-D1/2＝r2-r1’，r2＞r1’，r1和r1’均表示圆心位于内圈的通孔6所在圆的半径，即，r1＝r1’，r2为圆心位于外圆的通孔6所在圆的半径；此时，垂荡板5的结构可参考图6理解，在图6所示的垂荡板5结构中，以r1标记圆心位于内圈的通孔6所在圆的半径，此处r1’只是为了与前述n＝1时的说明做区分。When n=2, the through holes 6 are opened along the two circumferences of the heave plate 5, and the through holes 6 on the two circles are staggered, r1-D1/2=r2-r1', r2>r1', r1 and r1' Both represent the radius of the circle where the through hole 6 is located in the inner circle, that is, r1=r1', r2 is the radius of the circle where the through hole 6 is located in the outer circle; at this time, the structure of the heave plate 5 can refer to Figure 6 It should be understood that in the structure of the heave plate 5 shown in FIG. 6 , the radius of the circle where the through hole 6 whose center is located in the inner ring is marked with r1 , where r1 ′ is only to distinguish it from the foregoing description when n=1.
n＝3时，通孔6沿垂荡板的三个圆周开设，相邻两个圆上的通孔6交错布置，r3＞r2’＞r1”，r1”为圆心位于内圈的通孔6所在圆的半径，r3为圆心位于外圈的通孔6所在圆的半径，r2’为内圈与外圈之间通孔6所在圆的半径；此时，垂荡板5的结构可参考图7理解，在图7所示的垂荡板5结构中，以r1标记圆心位于内圈的通孔6所在圆的半径，以r2标记内圈与外圈之间通孔6所在圆的半径。When n=3, the through holes 6 are opened along the three circumferences of the heave plate, and the through holes 6 on two adjacent circles are arranged in a staggered manner, r3>r2'>r1", r1" is the through hole 6 whose center is located in the inner circle The radius of the circle, r3 is the radius of the circle where the through hole 6 is located in the outer ring, r2' is the radius of the circle where the through hole 6 is located between the inner ring and the outer ring; at this time, the structure of the heave plate 5 can refer to the figure It should be understood that in the structure of the heave plate 5 shown in FIG. 7 , r1 marks the radius of the circle where the through hole 6 is located in the inner ring, and r2 marks the radius of the circle where the through hole 6 between the inner ring and the outer ring is located.
垂荡板5的厚度为25-60mm，垂荡板5的直径大于主浮筒1直径1.5m-2m。The thickness of the heave plate 5 is 25-60mm, and the diameter of the heave plate 5 is 1.5m-2m larger than the diameter of the main buoy 1 .
半潜式风机基础，包括垂荡板5和主浮筒1；垂荡板5采用上述任一实施例的所述垂荡板，垂荡板5同轴设置在主浮筒1底部，主浮筒1至少设置有三个，两个主浮筒1之间设置斜撑3和横撑4。The semi-submersible fan foundation includes a heave plate 5 and a main buoy 1; the heave plate 5 adopts the heave plate of any of the above-mentioned embodiments, and the heave plate 5 is coaxially arranged at the bottom of the main buoy 1, and the main buoy 1 is at least There are three, and diagonal braces 3 and transverse braces 4 are arranged between the two main buoys 1 .
主浮筒1、斜撑3、横撑4和垂荡板5的表面均设有防腐蚀层。The surfaces of the main buoy 1, the diagonal braces 3, the transverse braces 4 and the heave plates 5 are all provided with anti-corrosion layers.
主浮筒1的直径与垂荡板5的直径之比不小于1.2。The ratio of the diameter of the main buoy 1 to the diameter of the heave plate 5 is not less than 1.2.
如图1所示，本发明提出的一种开孔的半潜式风机基础，包括主浮筒1、塔架2、斜撑3、横撑4、垂荡板5、垂荡板5沿其圆周方向设通孔6，主浮筒1的直径为D1，垂荡板5的直径为D2，主浮筒1和垂荡板5的圆心O一致。在距离圆心O为r1的圆上均匀开设8个通孔6，即通孔6的圆心距离主浮筒1的圆心距离为r1，同一圆周上相邻两个通孔6的圆心之间的圆弧对应的弧度为π/4。一般的来说：As shown in Fig. 1, a semi-submersible fan foundation with openings proposed by the present invention includes a main buoy 1, a tower 2, a diagonal brace 3, a transverse brace 4, a heave plate 5, and a heave plate 5 along its circumference A through hole 6 is set in the direction, the diameter of the main buoy 1 is D1, the diameter of the heave plate 5 is D2, and the center O of the main buoy 1 and the heave plate 5 are the same. Eight through holes 6 are evenly opened on a circle whose distance from the center O is r1, that is, the distance between the center of the through hole 6 and the center of the main buoy 1 is r1, and the arc between the centers of two adjacent through holes 6 on the same circumference is The corresponding radian is π/4. Generally speaking:
r1＝0.25×D2+0.25×D1r1=0.25×D2+0.25×D1
在垂荡板5平面上的通孔6为均匀分布的圆孔，其数量和直径可根据具体应用场景调整。例如，图6和图7分别给出了漂浮式风机基础主浮筒及16个通孔的垂荡板和漂浮式风机基础主浮筒及24个通孔的垂荡板的实施例。The through holes 6 on the plane of the heave plate 5 are uniformly distributed circular holes, the number and diameter of which can be adjusted according to specific application scenarios. For example, FIG. 6 and FIG. 7 respectively show an embodiment of a floating fan base main buoy and a heave plate with 16 through holes and a floating fan base main buoy and a heave plate with 24 through holes.
在垂荡板5上均匀开孔，可根据具体项目需求调整通孔6的数量和位置。Holes are evenly opened on the heave plate 5, and the number and position of the through holes 6 can be adjusted according to specific project requirements.
如图2给出了一种半潜式风机基础8孔垂荡板结构图，图3、图4和图5分别给出了半潜式风机基础8孔垂荡板的正视图、侧视图和俯视图。从图中可以看出，通孔6的圆心距离主浮筒1的圆心距离为r1，相邻两孔之间的夹角为45°。一般的来说：r1＝0.25×D2+0.25×D1Figure 2 shows the structure of an 8-hole heave plate for the foundation of a semi-submersible wind turbine. Figures 3, 4 and 5 show the front, side and top views of the 8-hole heave plate for the foundation of the semi-submersible wind turbine, respectively. It can be seen from the figure that the distance between the center of the through hole 6 and the center of the main buoy 1 is r1, and the included angle between two adjacent holes is 45°. Generally speaking: r1=0.25×D2+0.25×D1
图6给出了半潜式风机基础16孔垂荡板俯视图，通孔6的圆心距离主浮筒1的圆心距离为r1和r2，r2＞r1，同一圆周上相邻两个通孔6的圆心之间的圆弧对应的弧度为π/4。一般的来说：Figure 6 shows the top view of the 16-hole heave plate on the foundation of the semi-submersible fan. The distance between the center of the through hole 6 and the center of the main buoy 1 is r1 and r2, r2>r1, and the distance between the centers of two adjacent through holes 6 on the same circle is r1 and r2. The arc corresponding to radian is π/4. Generally speaking:
r1-D1/2＝r2-r1r1-D1/2=r2-r1
图7给出了半潜式风机基础24孔垂荡板俯视图，通孔6的圆心距离主浮筒1的圆心距离为r1，r2和r3，r3＞r2＞r1，同一圆周上相邻两个通孔6的圆心之间的圆弧对应的弧度为π/4。Figure 7 shows the top view of the 24-hole heave plate of the semi-submersible fan foundation. The distance between the center of the through hole 6 and the center of the main buoy 1 is r1, r2 and r3, r3>r2>r1, two adjacent through holes 6 on the same circumference The arcs between the centers of the circles correspond to radians of π/4.
由于开孔后减少了垂荡板5的质量，并且增加了结构外边缘轮廓与水 接触的湿面积，因此本发明提出的开孔的半潜式风机基础的垂荡板5可以提供的额外的水动力阻尼，增大整个结构的附加质量，有效提高漂浮式风机的运动性能。Since the mass of the heave plate 5 is reduced after the opening and the wet area of the outer edge of the structure in contact with water is increased, the heave plate 5 based on the opening of the semi-submersible fan proposed by the present invention can provide additional Hydrodynamic damping increases the additional mass of the entire structure and effectively improves the motion performance of the floating fan.
本发明具体实施时，将所述半潜式风机基础用于半潜式海上风电机组，塔架2设置在半潜式风机基础的中心轴线上，塔架2与主浮筒1通过斜撑3以及横撑4连接。In the specific implementation of the present invention, the semi-submersible wind turbine foundation is used for the semi-submersible offshore wind turbine, the tower 2 is arranged on the central axis of the semi-submersible wind turbine foundation, and the tower 2 and the main buoy 1 pass through the diagonal braces 3 and The cross brace 4 is connected.
虽然已经参照本发明的示例性实施例具体示出和描述了本发明，但是本领域普通技术人员应该理解，在不脱离由权利要求限定的本发明的精神和范围的情况下，可以对其进行形式和细节的各种改变。While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that modifications may be made thereto without departing from the spirit and scope of the invention as defined by the claims. Various changes in form and detail.

Claims (10)

  1. 一种用于半潜式风机基础的垂荡板，其特征在于，沿垂荡板(5)的圆周方向均匀开设若干个通孔(6)。A heave plate used for the foundation of a semi-submersible fan is characterized in that a plurality of through holes (6) are evenly opened along the circumferential direction of the heave plate (5).
  2. 根据权利要求1所述的用于半潜式风机基础的垂荡板，其特征在于，通孔(6)的数量为8n个，n＝1，2，……16；同一圆周上开设8个通孔(6)，当n大于或等于2时，相邻两个圆上的通孔错位布置。The heave plate for the foundation of a semi-submersible wind turbine according to claim 1, characterized in that the number of through holes (6) is 8n, n=1, 2, ... 16; 8 are provided on the same circumference For the through holes (6), when n is greater than or equal to 2, the through holes on two adjacent circles are arranged in dislocation.
  3. 根据权利要求2所述的用于半潜式风机基础的垂荡板，其特征在于，n＝1时，通孔(6)所在圆周的半径为r1＝0.25×D2+0.25×D1，D1是主浮筒的直径，D2是垂荡板(5)的直径。The heave plate for the foundation of a semi-submersible wind turbine according to claim 2, characterized in that, when n=1, the radius of the circle where the through hole (6) is located is r1=0.25×D2+0.25×D1, and D1 is The diameter of the main buoy, D2 is the diameter of the heave plate (5).
  4. 根据权利要求2所述的用于半潜式风机基础的垂荡板，其特征在于，n＝2时，通孔(6)沿垂荡板(5)的两个圆周开设，两个圆上的通孔(6)交错布置，r1-D1/2＝r2-r1’，r2＞r1’，r2为圆心位于外圆的通孔(6)所在圆的半径。The heave plate for the foundation of a semi-submersible fan according to claim 2, characterized in that, when n=2, the through holes (6) are opened along two circumferences of the heave plate (5), and the two circles The through holes (6) are arranged in a staggered manner, r1-D1/2=r2-r1', r2>r1', and r2 is the radius of the circle where the through holes (6) with the center of the outer circle are located.
  5. 根据权利要求2所述的用于半潜式风机基础的垂荡板，其特征在于，n＝3时，通孔(6)沿垂荡板(5)的三个圆周开设，相邻两个圆上的通孔(6)交错布置，r3＞r2’＞r1”，r1”为圆心位于内圈的通孔(6)所在圆的半径，r3为圆心位于外圈的通孔(6)所在圆的半径，r2’为内圈与外圈之间通孔(6)所在圆的半径。The heave plate for the foundation of a semi-submersible wind turbine according to claim 2, characterized in that, when n=3, the through holes (6) are opened along three circumferences of the heave plate (5), two adjacent ones The through holes (6) on the circle are arranged in a staggered manner, r3>r2'>r1", r1" is the radius of the circle where the through hole (6) whose center is located in the inner ring is located, and r3 is where the through hole (6) whose center is located in the outer ring is located The radius of the circle, r2' is the radius of the circle where the through hole (6) between the inner ring and the outer ring is located.
  6. 根据权利要求1所述的用于半潜式风机基础的垂荡板，其特征在于，厚度为25-60mm，直径大于浮筒直径1.5m-2m。The heave plate for the foundation of a semi-submersible wind turbine according to claim 1, characterized in that the thickness is 25-60mm, and the diameter is 1.5m-2m larger than the diameter of the buoy.
  7. 半潜式风机基础，其特征在于，包括垂荡板(5)和主浮筒(1)；垂荡板(5)采用权利要求1-6任一项所述垂荡板，垂荡板(5)同轴设置在主浮筒(1)底部，主浮筒(1)至少设置有三个，两个主浮筒(1)之间设置斜撑(3)和横撑(4)。The semi-submersible fan foundation is characterized in that it comprises a heave plate (5) and a main buoy (1); the heave plate (5) adopts the heave plate described in any one of claims 1-6, and the heave plate (5) ) are coaxially arranged at the bottom of the main buoy (1), at least three main buoys (1) are arranged, and diagonal braces (3) and transverse braces (4) are arranged between the two main buoys (1).
  8. 根据权利要求7所述的半潜式风机基础，其特征在于，主浮筒(1)、斜撑(3)、横撑(4)和垂荡板(5)的表面均设有防腐蚀层。The semi-submersible wind turbine foundation according to claim 7, characterized in that, the surfaces of the main buoy (1), the diagonal brace (3), the cross brace (4) and the heave plate (5) are all provided with an anti-corrosion layer.
  9. 根据权利要求7所述的半潜式风机基础，其特征在于，主浮筒(1)的直径与垂荡板(5)的直径之比不小于1.2。The semi-submersible wind turbine foundation according to claim 7, wherein the ratio of the diameter of the main buoy (1) to the diameter of the heave plate (5) is not less than 1.2.
  10. 一种半潜式海上风电机组，其特征在于，采用权利要求7-9任一项所述半潜式风机基础，塔架(2)设置在半潜式风机基础的中心轴线上，塔 架(2)与主浮筒(1)通过斜撑(3)以及横撑(4)连接。A semi-submersible offshore wind turbine, characterized in that, using the semi-submersible wind turbine foundation described in any one of claims 7-9, the tower (2) is arranged on the central axis of the semi-submersible wind turbine foundation, and the tower (2) 2) Connect with the main buoy (1) through diagonal braces (3) and transverse braces (4).
PCT/CN2021/114894 2020-12-30 2021-08-27 Semi-submersible offshore wind turbine unit, foundation and heave plate WO2022142415A1 (en)

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CN116039860A (en) * 2023-02-02 2023-05-02 大连理工大学 Load-reducing and rolling-reducing wind energy-wave energy complementary power generation floating platform

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