Damper and load-bearing envelop enclosure with same

Abstract

The invention provides a damper and a load-bearing envelop enclosure with the same. The damper includes a shell forming an accommodating cavity and a vibration energy dissipating unit located in the shell, wherein the accommodating cavity includes a liquid storing cavity located on the lower portion and a mass body motion cavity located on the upper portion; the vibration energy dissipating unit includes damping fluid accommodated in the liquid storing cavity and a plurality of mass bodies located in the mass body motion cavity, and the mass bodies float on the liquid surface of the damping fluid; and a plurality of tooth-shaped bulges are formed on the outer surface of the mass bodies for breaking waves which are formed in the damping fluid due to vibration to be dispersed in different directions. According to the damper, the vibration of the load-bearing envelop enclosure can be effectively suppressed.

Description

technical field [0001] The invention relates to the technical field of wind power generation, more specifically, to a damper for suppressing vibration of a load-bearing enclosure structure and a load-bearing enclosure structure with the damper. Background technique [0002] A wind turbine is an energy conversion device used to convert wind energy into electrical energy. Generally, wind power generation equipment includes a load-bearing maintenance structure (for example, a tower), a nacelle arranged on the tower, a generator installed in or outside the nacelle, a wind turbine installed in the wind direction above the head of the nacelle, and the like. For the convenience of processing and transportation, the tower is usually manufactured in sections and then transported to the installation site. At the installation site, the multi-section towers are hoisted and fixed in sequence to form a supporting foundation for the engine room and generator components, and the tower is pl...

AI Technical Summary

Problems solved by technology

[0008] However, the method of winding or fixing the helix on the tower is only used in the hoisting stage, and the characteristic parameters (pitch, height) of the helix have not been optimized, and it is difficult to adapt to changes in wind speed

In order to adapt to changes in the wind speed of the air flow, and suitable for long-term operation, it will bring a substantial increase in the manufacturing cost and maintenance cost of the helix

[0009] In addition, the coverage rate of the helix on the surface of the tower will also affect the effect of lateral vibration suppression. When the coverage rate reaches (or exceeds) 50%, the effect of suppressing lateral vibration is the best. At the same time, the wind-induced noise of the helix and air flow increases. Serious impact on natural environment organisms, especially disturbance to animals and birds, damage to ecological environment

Images