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Surrounding body device and method for inhibiting vibration of retaining structure

A technology of enclosure structure and equipment, which is applied in the field of surrounding body, hoisting tower and equipment to suppress the vibration of enclosure structure, and can solve the problems of increased manufacturing cost and maintenance cost, etc.

Active Publication Date: 2018-02-27
BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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  • Summary
  • 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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  • Surrounding body device and method for inhibiting vibration of retaining structure
  • Surrounding body device and method for inhibiting vibration of retaining structure
  • Surrounding body device and method for inhibiting vibration of retaining structure

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Embodiment Construction

[0128] 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.

[0129] Please refer to Figure 4 , Figure 4 A structural schematic diagram of a specific embodiment of a tower surrounded by a surrounding 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 middle surround; 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 structure in which the medium gas is discharged through the lifter 208; Figure 5-6 for Figure 4 Schematic diagram of the swing of the mid-surrounding body as the upwind direction of the incoming wind changes.

[0130] Su...

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Abstract

The invention discloses a surrounding body device and method for inhibiting vibration of a retaining structure. The device comprises a surrounding body capable of surrounding the retaining structure.The surrounding body is further provided with a lifting device. The lifting device is provided with an air inlet runner and an exhaust runner. The lifting device drives the surrounding body to float vertically through exhausting of the exhaust runner. Due to the fact that the lifting device drives the surrounding body to sweep vertically, the attack angle and the pneumatic appearance of tower sections at different heights can be changed continuously in a floating height range, formation of vortexes on the two sides behind a tower is hindered, the consistency of the disengaging frequency of upper and lower vortexes of the tower is disorganized, and generation of vortex-induced vibration is inhibited. In addition, when the surrounding body floats and sinks vertically, the surrounding body can also swing and collide with the outer wall of the tower to damage boundary layer stream around near the tower, formation of vortexes can also be hindered, and vibration is inhibited.

Description

technical field [0001] The invention relates to the technical field of wind power, in particular to a surrounding body for suppressing vibration of an enclosure structure, equipment, and a method for hoisting a tower. 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 ...

Claims

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Application Information

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IPC IPC(8): F03D13/20F03D13/10F03D80/00F03D17/00
CPCF03D13/10F03D13/22F03D17/00F03D80/00Y02E10/72Y02E10/728
Inventor 马盛骏
Owner BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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