Shock absorbing device of tuned mass damper (TMD) for draught fan and mounting method thereof

Abstract

The invention discloses a shock absorbing device of a tuned mass damper (TMD) for a draught fan. The device comprises a tower barrel and a plurality of pendulum devices mounted in the tower barrel, wherein an inner sleeve is fixedly arranged in the tower barrel in a sleeved manner; the inner sleeve is fixedly connected to the tower barrel through a partition plate and divides the space between thetower barrel and the inner sleeve into a plurality of built-in cavities; and the pendulum devices can be mounted in the built-in cavities in a swinging mode. Each pendulum device comprises a connecting rope and a pendulum ball, wherein one end of the connecting rope is vertically connected to the upper end of the tower barrel while the other end of the connecting rope is connected to the pendulumball, and the pendulum ball is opposite to the moving direction of the vibrated tower barrel under the inertial action force. The invention further discloses a mounting method. With adoption of a structure that the plurality of pendulum dampers are uniformly distributed in the circumferential direction of the tower barrel, a condition of an eccentric load is avoided, the swinging direction of thependulum balls is not limited, and the pendulum balls can swing all around at 360 degrees, so that the direction is changed anytime as the vibrating direction of the tower barrel is changed, and therefore, a purpose of absorbing shock of the tower barrel quickly and immediately is achieved.

Description

technical field [0001] The invention relates to a pendulum damper and an installation method thereof, in particular to a TMD damper damping device for a fan and an installation method thereof. Background technique [0002] In recent years, with the rapid development of the world economy, the demand for energy has been increasing, and problems such as energy crisis and environmental degradation have become increasingly prominent. Wind energy, as a clean, non-polluting, renewable, widely distributed and huge reserves of energy, has attracted more and more attention and attention. Countries all over the world are competing to vigorously develop and utilize wind energy resources to solve and improve their energy supply and Environmental pollution and other issues. In recent years, the wind power industry has developed rapidly around the world, making the wind turbine unit capacity more and more large. During normal operation, due to the periodic rotation of the impeller, it bea...

AI Technical Summary

Problems solved by technology

Therefore, it is not feasible to use dampers in ordinary high-rise buildings and high-rise structures for installation in wind towers

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