Wind power generation equipment, tower and method for suppressing tower shadow effect

Abstract

The invention discloses a wind power generation equipment, a tower and a method for suppressing the tower shadow effect of the tower. distribution; the tower is also provided with a suction device capable of sucking the suction through hole from outside to inside. The tower tube and the method can weaken or eliminate the adverse influence of the tower shadow effect when the suction through hole on the windward side is sucked, prolong the service life of the variable pitch bearing, reduce noise, and improve the utilization factor of wind energy. And when the suction through hole in the direction of the flow around the body is pumped, the vortex-induced vibration can also be suppressed; moreover, the suction force can be adjusted at any time according to the actual situation during suction, which has higher flexibility; When the airflow is discharged to the inside, it can also play the role of heat exchange and cooling, and block the external rainwater and dust from entering the shroud or hub.

Description

technical field [0001] The invention relates to the technical field of tower tubes, in particular to a wind power generation device, a tower tube and a method for suppressing the tower shadow effect of the tower tube. 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 t...

AI Technical Summary

Problems solved by technology

[0031] 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;

[0032] The coverage of the helix 10a (or spiral plate) on the surface of the tower will affect the effect of suppressing lateral vibration. When the coverage reaches (or exceeds) 50%, the effect of suppressing lateral vibration reaches the best, but at this time the helix 10a (or Spiral plate) and the wind-induced noise of air flow have a serious impact on natural environment organisms, which are not allowed by ecological regulations;

[0033] 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

Images