Cooling system for shafting and control method thereof, and wind turbine
AssigneeBeijing Goldwind Science & Creation Windpower Equipment Co., Ltd.
InventorsYang Gao, Luolin Bai, Ran Yin, Tao Fang, Kunfeng Liang
Life of this patent
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Abstract
A cooling system for a shafting and a control method therefor, and a wind turbine are provided. The cooling system includes a cold air supply unit and a rotating-shaft air blow box. The rotating-shaft air blow box is mounted on an inner surface of the stationary shaft and in the shape of a circular ring-shaped box, multiple first air blow openings are uniformly distributed in a surface, facing the rotating shaft, of the rotating-shaft air blow box in a circumferential direction, to blow cold air from the cold air supply unit to the rotating shaft. Each first air blow opening is in the shape of a slit to form a jet.
Claims20
A cooling system for a shafting of a wind turbine, the shafting comprising a stationary shaft, a rotating shaft, and a bearing provided between the stationary shaft and the rotating shaft, the bearing comprising an outer ring, rollers and an inner ring, the outer ring being connected to the stationary shaft, and the inner ring being connected to the rotating shaft, wherein the cooling system comprises:
- a cold air supply unit;
- and
- a rotating-shaft air blow box, wherein the rotating-shaft air blow box is mounted on an inner surface of the stationary shaft and is in a shape of a circular ring-shaped box, and the rotating-shaft air blow box axially faces the rotating shaft;
- a plurality of first air blow openings are uniformly distributed in a surface, axially facing the rotating shaft, of the rotating-shaft air blow box in a circumferential direction, to blow cold air from the cold air supply unit to the rotating shaft, and
- wherein each of the plurality of the first air blow openings is in a shape of a slit, to form a jet.
Dependencies are inferred from the claim text.