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CN-122009413-A - Floating fan with double units

CN122009413ACN 122009413 ACN122009413 ACN 122009413ACN-122009413-A

Abstract

The application discloses a double-unit floating fan which comprises a platform, two wind power generator units and a mooring device. The platform comprises pontoons and at least four columns which are arranged in a polygonal shape. The two wind generating sets are respectively arranged on the two upright posts, the top connecting line of the two upright posts provided with the wind generating sets is a first line segment, the top connecting line of the two upright posts without the wind generating sets is a second line segment, and the first line segment and the second line segment are spatially crossed. The at least one column is configured to balance the overturning moment generated by the two wind turbines. The mooring means is for mooring the platform to the seabed. Compared with the related art, the floating fan with the double units disclosed by the application has the advantages that the overturning moment is balanced by specially configuring at least one upright post, so that the platform can more effectively resist the strong overturning moment caused by the combined action of wind load of two fans, and a more stable and safer working environment is created for the fan units.

Inventors

  • SUN CE
  • JIANG HUILONG
  • YAO ZHI
  • ZHANG MINGMING
  • DONG JIAXUAN
  • Yuan Chaojun
  • YU MIAO
  • SUN ZIHAN
  • YU XIAONAN
  • ZHANG JIAN

Assignees

  • 中车科技创新(北京)有限公司
  • 中车大连机车车辆有限公司

Dates

Publication Date
20260512
Application Date
20260226

Claims (13)

  1. 1. A double unit floating fan comprising: the platform (100) comprises a pontoon (120) and at least four columns (110) which are arranged in a polygonal shape, wherein the columns (110) are connected through the pontoon (120); The wind power generation system comprises two wind power generation units (200), at least one column (110), a plurality of wind wheels (210) and a plurality of wind power generation units, wherein the two wind power generation units (200) are respectively arranged on two columns (110), the top connecting line of the two columns (110) provided with the wind power generation units (200) is a first line segment, the top connecting line of the two columns (110) not provided with the wind power generation units (200) is a second line segment, and the first line segment and the second line segment are spatially crossed; -mooring means (300) for mooring the platform (100) to the seabed.
  2. 2. The double-unit floating wind turbine according to claim 1, wherein each column (110) is a mooring column (111), a wind turbine column (112) and a plane Heng Zhu (113), the mooring device (300) is arranged on the mooring column (111), and two wind turbine units (200) are respectively arranged on the two wind turbine columns (112), and the balancing column (113) is a column (110) for balancing overturning moment; In the wind direction, the balance column (113) is located on the leeward side of the fan column (112), and the mooring column (111) is located on the windward side of the fan column (112).
  3. 3. The twin-unit floating wind turbine according to claim 2, characterised in that two of said wind turbine columns (112) are symmetrical with respect to a reference plane, said reference plane being the plane in which the axis of said balancing column (113) and the axis of said mooring column (111) lie.
  4. 4. The twin unit floating wind turbine of claim 1, wherein the wind wheel (210) is located downwind of the tower (220) in the direction of the wind.
  5. 5. The twin unit floating wind turbine of claim 1, wherein said pontoons (120) are connected between adjacent ones of said columns (110) and together form a polygonal frame.
  6. 6. The twin unit floating fan of claim 5, wherein the platform (100) further comprises cross beams (130), the cross beams (130) being connected between the columns (110) and disposed at a position above the waterline of the columns (110).
  7. 7. The twin unit floating fan as defined in claim 6, wherein the cross-brace beams (130) are arranged circumferentially between the plurality of columns to form at least one reinforcing frame.
  8. 8. The twin unit floating fan as defined in claim 1, characterised in that the lower part of at least one of the columns (110) is provided with a heave plate (140), the heave plate (140) having an internal cavity.
  9. 9. The twin-unit floating fan according to claim 1, characterized in that the radius of the wind wheel (210) is R, the distance between the hub centers of the two wind wheels (210) is L, and L <2R is satisfied, and the rotational movement of the two wind wheels (210) is controlled to have a phase difference.
  10. 10. The twin-unit floating wind turbine of claim 2, wherein in front projection, the tower (220) has a first angle of inclination with respect to the horizontal and the direction of inclination of the two towers (220) is such that the two wind wheels (210) are directed away from the centre of the platform (100).
  11. 11. The twin-unit floating wind turbine of claim 10, wherein in front projection, the wind turbine columns (112) have a second inclination angle with respect to the horizontal, and wherein the inclination directions of the two wind turbine columns (112) are such that they extend from the bottom of the wind turbine column (112) to the outside away from the center of the platform (100), respectively, and wherein the second inclination angle is greater than the first inclination angle.
  12. 12. The twin unit floating fan as defined in claim 1, in which the direction of rotation of the two wind wheels (210) is opposite.
  13. 13. The twin unit floating wind turbine of claim 2, wherein the mooring device (300) comprises: a turret (310), the mooring column (111) being provided with a mounting groove, the turret (310) being rotatably arranged in the mounting groove; The inner ring of the main bearing (320) is connected with the turret (310), and the outer ring of the main bearing (320) is connected with the mounting groove; an anchor chain plate (330) fixedly connected with the turret (310); and one end of the anchor chain (340) is connected with the anchor chain disc (330), and the other end of the anchor chain (340) is anchored with the seabed.

Description

Floating fan with double units Technical Field The application relates to the technical field of offshore wind power generation, in particular to a floating fan with double units. Background The current deep open sea area has rich wind energy resources, stable wind speed and high utilization hours, and is an important direction for the development of the future offshore wind power. Because the water depth is usually more than 60-80 m, the traditional fixed foundation is difficult to be economically applicable, and the floating wind power platform becomes one of the main technical routes. The existing deep-open sea floating wind power mostly adopts a single-machine single-base arrangement mode, namely only one wind turbine unit is arranged on one semi-submersible type or tension leg type floating body. The mode single machine has limited installed capacity, and the cost of a floating body structure, a mooring system, a submarine cable and the like is shared on a single machine unit, so that the unit kilowatt manufacturing cost is high. To break through the single-machine capacity limitation, those skilled in the art will naturally consider a solution in which two wind power units are arranged on one floating platform. However, the huge thrust generated by the double wind wheels can form obvious overturning moment, and the remarkable overturning moment is coupled with the rolling and pitching movement of the platform under the wave action to seriously interfere with the attitude stability of the wind power platform. Therefore, how to improve the stability of the floating fan with double units becomes a technical problem to be solved by the technicians in the field. Disclosure of Invention The application aims to disclose a double-unit floating fan so as to improve the stability of the double-unit floating fan. A dual unit floating fan comprising: the platform comprises a pontoon and at least four columns which are arranged in a polygonal shape, wherein the columns are connected through the pontoon; The wind power generation system comprises two wind power generation units, at least one vertical column, a plurality of wind power generation units and a plurality of wind power generation units, wherein the two wind power generation units are respectively arranged on two vertical columns, the top connecting lines of the two vertical columns provided with the wind power generation units are first line segments, and the top connecting lines of the two vertical columns which are not provided with the wind power generation units are second line segments, and the first line segments and the second line segments are spatially crossed; mooring means for mooring the platform to the seabed. In a possible implementation manner, each upright post is a mooring post, a fan post and a balance post, the mooring device is arranged on the mooring post, and the two wind generating sets are respectively arranged on the two fan posts; along the wind direction, the balance column is located the leeward side of fan post, the mooring column is located the upwind side of fan post. In a possible embodiment, two of the fan columns are symmetrical with respect to a reference plane, the reference plane being the plane in which the axes of the balance column and the mooring column lie. In a possible embodiment, the wind wheel is located downwind of the tower in the direction of the wind direction. In a possible embodiment, the pontoons are connected between adjacent columns and together form a polygonal frame. In a possible embodiment, the platform further comprises cross beams connected between the uprights and arranged at a position above the waterline of the uprights. In a possible embodiment, the cross beams are arranged in a circumferential direction between the plurality of uprights, constituting at least one reinforcing frame. In a possible embodiment, the lower part of at least one of the uprights is provided with a heave plate having an internal cavity. In a possible embodiment, the radius of the wind wheel is R, the distance between the hub centers of the two wind wheels is L, and L <2R is satisfied, and the rotational movements of the two wind wheels are controlled to have a phase difference. In a possible embodiment, in the front projection plane, a first inclination angle is formed between the tower and the horizontal plane, and the inclination directions of the two towers are directions in which the two wind wheels are far away from the center of the platform. In a possible implementation manner, in a front projection plane, a second inclination angle is formed between the fan columns and a horizontal plane, and the inclination directions of the two fan columns are respectively from the bottom of the fan columns to extend towards the outer side far from the center of the platform, wherein the second inclination angle is larger than the first inclination angle. In a possible embodiment, the rotation directions of the two wind wh