Method and equipment for suppressing vibration of enclosure structure and hoisting method of tower

Abstract

Disclosed are a method and an apparatus for suppressing the vibration of an exterior-enclosed construction, and a method for hoisting a tower barrel (100). In the method, a jet (202') is jetted toward an incoming upwind flow of the tower barrel (100) so as to disturb, in the height direction of the tower barrel (100), at least part of the incoming upwind flow corresponding to an upper upwind side of the tower barrel (100). By jetting the jet (202') to the incoming upwind flow, the wind velocity can be reduced and the aerodynamic configuration can be changed, the resistance can be increased, and the vibration reduction effect can be achieved. In addition, the phenomenon of air flow layering can appear for the exterior-enclosed construction, thereby disrupting the consistency of the frequencies of upper vortex shedding and lower vortex shedding and preventing the vibration from being induced by an upper vortex of the exterior-enclosed construction. After being disturbed by the jet (202'), the incoming upwind flow has a certain turbulence intensity, has the pulsation performance and does not easily cause vortex-induced vibration. The above-mentioned method can make an adjustment according to a change in the wind velocity while reducing the influence of the vortex-induced vibration, without increasing the cost of the constriction. Moreover, the jet (202') creates less noise. Furthermore, the method of reducing vibrations by means of distribution by the jet (202') can exist throughout all the stages of the exterior-enclosed construction from installation to use, and has practical significance.

Description

technical field [0001] The invention relates to the technical field of tower tubes, in particular to a method and equipment for suppressing vibration of an enclosure structure and a hoisting method for tower tubes. 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 wind turbine 20 and the generator completes the task of obtaining wind energy and converting it into electrical energy. The converted electric energy is tran...

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Problems solved by technology

[0032] The installation helix 10a (or spiral plate) is only used in the hoisting stage, which reduces the significance and loses a lot. Considering the long-term operation and use, it is difficult to adapt to the change of wind speed and correspond to different wind speeds due to the requirements of device cost and environmental protection, that is: It is difficult to function under different wind speeds

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