Streamline body and equipment for restraining vibration of enclosure structure and tower barrel hoisting method

An envelope structure and streamlined body technology is applied in the field of equipment, hoisting towers, and streamlined bodies for suppressing the vibration of the envelope structure, which can solve the problems of increased manufacturing cost and maintenance cost.

Active Publication Date: 2018-01-23
BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0031] In addition, the wind speed of the air flow will change. If the characteristic parameters (pitch, height) of the helix 10a (or spiral plate) are processed to change according to the change of the wind speed of the air flow, the corresponding manufacturing cost and maintenance cost will increase significantly.

Method used

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  • Streamline body and equipment for restraining vibration of enclosure structure and tower barrel hoisting method
  • Streamline body and equipment for restraining vibration of enclosure structure and tower barrel hoisting method
  • Streamline body and equipment for restraining vibration of enclosure structure and tower barrel hoisting method

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Embodiment Construction

[0108] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0109] Please refer to Figure 4 , Figure 4 A structural schematic diagram of a specific embodiment of a tower surrounded by a streamlined body provided by the present invention; Figure 5-1 for Figure 4 top view of Figure 5-2 for Figure 4 Top view of the streamlined body; Figure 5-3 for Figure 5-2 Partial enlarged schematic diagram of the middle part I; Figure 5-4 for Figure 4 Partial enlarged schematic diagram of the middle part II; Figure 5-5 for Figure 4 Schematic diagram of the swing of the mid-streamline body as the upwind direction of the incoming wind changes.

[0110] Such as Figure 4 As shown, the tower 100 is installed on the foundation 300, and the tower 100 is formed by connecting five t...

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Abstract

The invention discloses a streamline body and equipment for restraining vibration of an enclosure structure and a tower barrel hoisting method. The streamline body surrounds the enclosure structure and is provided with a streamline-shaped front edge. The front edge can face towards an upwind direction incoming flow, so that the upwind direction incoming flow forms a positive attack angle and/or anegative attack angle. According to the scheme, the streamline body surrounds the enclosure structure, when the upwind direction incoming flow flows around the enclosure structure to make contact withthe streamline body, the aerodynamic shape is changed, the aerodynamic coefficient C is decreased, and vibration is reduced; and the air flow direction and the path are changed, correlation of an upwind direction air flow around the streamline body is damaged, the consistency of the vortex shedding frequency of the streamline body and air flows in other positions is disrupted, thus the combined action of the streamline body and the air flows is weakened, vortex-induced vibration response during around-flow body shedding of the outer surface boundary layer of the enclosure structure is reducedor prevented, and namely, vortex-induced vibration of the enclosure structure is prevented.

Description

technical field [0001] The invention relates to the technical field of wind power, in particular to a streamline body, equipment, and a method for hoisting a tower to suppress the vibration of an enclosure structure. Background technique [0002] Please refer to Picture 1-1 , Picture 1-1 Schematic diagram of wind power generation equipment. [0003] The foundation of the wind power generation equipment is the tower tube 10, which acts as a load bearing and enclosure for the whole machine. As an example, take a circular section tower tube 10 as an example. The tower tube 10 can be a steel tube, or a steel tube and a steel tube. Combination of concrete towers. The tower 10 carries the nacelle 30 of the wind power generation equipment, the generator and the wind turbine 20 . The wind power generating set composed of the tower 10, the wind turbine 20, the nacelle 30 and the generator completes the task of obtaining wind energy and converting it into electrical energy. The c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D80/00F03D13/20F03D13/10
CPCY02E10/728F05B2240/912F05B2260/96F05B2260/964F03D80/00F03D13/20F03D13/10Y02E10/72E04B1/98E04H12/342
Inventor 马盛骏
Owner BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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