Flow guide device and wind driven generator with same
A technology of a deflector and a deflector, which is applied to wind turbines, wind turbines and engines at right angles to the wind direction, etc., can solve the problems affecting the safety of the supporting part of the offshore wind turbine and the adverse impact on the dynamic performance of the unit, and reduce the pressure. , the effect of reducing whirlpools and improving safety
Inactive Publication Date: 2013-09-11
XEMC WINDPOWER CO LTD
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Problems solved by technology
At the same time, seawater forms a vortex after flowing through the cylinder. When the shedding frequency of the vortex is close to the natural frequency of the fan support part, it will have a bad impact on the dynamic performance of the unit and seriously affect the safety of the offshore fan support part.
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[0014] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0015] Refer to attached figure 1 , which includes a cylinder 1, a deflector 2, the deflector 2 includes a snap ring 3 and a deflector 4, the deflector 4 is movably connected to the surface of the cylinder 1, and the deflector 4 can follow the direction of the water flow around the cylinder 1 free spin. The clamping ring 3 is located at the upper end and the lower end of the shroud 4, the clamping ring 3 is composed of three fan-shaped rings 3-1, the two ends of the fan-shaped rings 3-1 are provided with connecting flanges, and the adjacent fan-shaped rings 3-1 There is a gap reserved between the flanges 1, and the sector rings 3-1 are connected together by flanges to form an integral clamping ring 3, and the sector rings 3-1 are tightened to each other by merging the gaps reserved between the flanges , so as to be closely attached to and fixed on the...
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The invention relates to a flow guide device. A wind driven generator comprises a cylinder and the flow guide device. The flow guide device comprises clamping rings and one or more flow guide covers. The flow guide covers are movably connected to the surface of the cylinder, the flow guide covers can rotate around the surface of the cylinder in the flowing direction freely, the clamping rings are arranged at least at the upper end of the top flow guide cover and at the lower end of the bottom flow guide cover, the clamping rings are used for limiting the positions of the flow guide covers on the cylinder axially, and the outer side face of each flow guide cover is of a streamline shape. According to the flow guide device, due to the fact that the flow guide device is arranged on the cylinder, the streamlined flow guide covers distribute seawater reasonably when the seawater flows through the flow guide device, effect on the cylinder is decreased greatly, swirls are decreased greatly, and the safety of a supporting part is improved. The invention further relates to the wind driven generator with the flow guide device.
Description
technical field [0001] The invention belongs to the field of wind power generators, and in particular relates to a flow guiding device and a wind power generator including the flow guiding device. technical background [0002] The support part of the offshore wind turbine below the seawater usually contains a cylindrical structure, and the boundary layer at the interface between the seawater and the cylinder often begins to separate before the seawater reaches the surface of the cylinder, forming a wide separation zone. The pressure is high, and the pressure is proportional to the square of the seawater velocity. At the same time, seawater forms a vortex after flowing through the cylinder. When the shedding frequency of the vortex is close to the natural frequency of the fan support part, it will have a bad impact on the dynamic performance of the unit and seriously affect the safety of the offshore fan support part. Contents of the invention [0003] The object of the pr...
Claims
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Login to View More IPC IPC(8): F03D3/04
CPCY02E10/74
Inventor 宋鑫龙辛陈习坤
Owner XEMC WINDPOWER CO LTD