Assembly type damping device for wind power tower drum
A damping device and wind power tower technology, applied in wind power generation, towers, wind turbines, etc., can solve the problems of reduced strength and excessive stress concentration, and achieve the effects of reducing structural response, convenient adjustment, and good sensitivity
Pending Publication Date: 2021-07-30
CHINA POWER INVESTMENT POWER ENG CO LTD
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Problems solved by technology
The greatest harm caused by vibration to the wind power tower structure is that the stress concentration at the weak part of the tower section with variable wall thickness is too large, and the strength is greatly reduced
Method used
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[0023] like figure 1 and figure 2 As shown, the assembled damping device for wind power towers of the present invention includes a stiffness system, a mass system, a damping system and a protection system. The mass system is arranged at the lower part of the stiffness system, and the bottom of the mass system is connected with a damping system. There is a protection system on the side of the building; each part can be disassembled into several prefabricated components. During installation, each prefabricated component can be hoisted to the corresponding position first, and assembled, installed and debugged on site.
[0024] The stiffness system includes a suspension frame 1 and a hoisting assembly 2. The upper end of the hoisting assembly 2 is suspended from the bottom of the suspension frame 1, and the lower end of the hoisting assembly 2 is connected to the mass system 3 through an anchor plate.
[0025] The suspension frame 1 is generally composed of horizontal components...
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The invention aims to disclose an assembly type damping device for a wind power tower drum. The assembly type damping device comprises a rigidity system, a mass system, a damping system and a protection system. The mass system is arranged on the lower part of the rigidity system, the damping system is arranged at the bottom of the mass system, and the protection system is arranged on the side surface of the damping system; the mass system is directly suspended on a hoisting assembly, initial starting force is not needed in a working state, the mass system can respond in time during tiny vibration, and sensitivity is good; the rigidity and the frequency of a product are continuously adjusted by adjusting the pendulum length, and the frequency is continuously adjusted; the size of a mass block is not changed when the frequency is adjusted, and the damping effect is guaranteed; friction and collision are carried out between particle swarms in the particle mass block and the interior of the shell, between the partition plates and between the particle swarms, a large amount of vibration energy is consumed, and structural response caused by external excitation is effectively reduced; and each part can be split into a plurality of assembly type parts, so that transportation and field installation are facilitated.
Description
technical field [0001] The invention relates to an assembled damping device, in particular to an assembled damping device for a wind power tower. Background technique [0002] Wind is one of the energy sources without pollution. Wind energy utilization is mainly based on wind power generation, that is, wind energy is captured by wind turbines and converted into electrical energy, which is then connected to the grid and transmitted to power users. my country is rich in wind energy resources, and it is very suitable for coastal islands, grasslands, pastoral areas, mountainous and plateau areas that are short of water, fuel, and inconvenient to use wind power to generate electricity according to local conditions. The development and utilization of wind energy is conducive to my country's path of low-carbon, economical, environmental protection and clean energy. [0003] The wind power tower is the tower pole of wind power generation, which mainly plays a supporting role in th...
Claims
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IPC IPC(8): E04H12/00E04H9/14E04B1/92E04B1/98F03D80/00
CPCE04B1/92E04B1/98E04H9/14E04H12/00F03D80/00Y02E10/72
Inventor 何倩倩张翼肖耀明吴腾飞文锋闵志华
Owner CHINA POWER INVESTMENT POWER ENG CO LTD