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Wind turbine generator system and flow guide cover front support device thereof

A technology for wind turbines and support devices, which is applied to wind turbine components, wind turbines, wind energy power generation, etc., can solve the problem of insufficient consideration of the fatigue strength of the shroud support structure, insufficient fatigue durability, and increase the shroud support. structural fatigue damage and other problems, to solve the problem of insufficient fatigue durability, improve fatigue resistance, and ensure the effect of fatigue resistance

Active Publication Date: 2015-04-29
JIANGSU GOLDWIND SCI & TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the process of realizing the design of the above-mentioned shroud supporting structure, the inventors found that there are at least the following problems in the prior art: in the above-mentioned structure and the shroud structure in the prior art, the supporting structure of the shroud is not fully considered. Fatigue strength, but there is a problem of insufficient fatigue durability, which increases the possibility of fatigue damage to the entire shroud support structure

Method used

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  • Wind turbine generator system and flow guide cover front support device thereof
  • Wind turbine generator system and flow guide cover front support device thereof
  • Wind turbine generator system and flow guide cover front support device thereof

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Embodiment Construction

[0037] The front supporting device of the wind turbine provided by the embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0038] Such as figure 1 As shown, it is a structural schematic diagram of a wind turbine wind generator set front support device 100, which includes: a bent plate 10, an axial support frame 20, a hub 30 and a guide flow shield 40 .

[0039] Wherein, the hub 30 is arranged inside the shroud 40; the axial support frame 20 is connected between the hub 30 and the shroud 40, and is used to support the shroud 40 in the axial direction; the bending plate 10 and the hub 30, the shroud 40 The flow shield 40 is connected to the axial support frame 20 . There are three sets of axial support frames 20 arranged at the same interval inside the wind deflector 40 , and there are also three sets of bent plates 10 and axial support frames 20 arranged at intervals.

[0040] Such as figure 2 As shown, the a...

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Abstract

The invention discloses a wind turbine generator system and a flow guide cover front support device thereof. The flow guide cover front support device comprises a flow guide cover, a hub, three groups of axial support frames and three groups of bent plates. The hub is arranged inside the flow guide cover; the three groups of axial support frames are arranged between the hub and the flow guide cover in a connected manner; the three groups of bent plates and the three groups of axial support frames are arranged at intervals, the bent plates are of integrally formed structures, two ends of each bent plate are connected onto the corresponding adjacent axial support frames, and the middle of each bent plate is connected onto the hub. The wind turbine generator system comprises the flow guide cover front support device. The wind turbine generator system and the flow guide cover front support device of the wind turbine generator system have the advantages of high rigidity and fatigue resistance.

Description

technical field [0001] The invention relates to the technical field of wind power generation, in particular to a wind power generating set and a front support device for a wind deflector. Background technique [0002] The design life of wind turbines is generally 20 years, and the number of rotations of the impeller during the life cycle is usually greater than 10 7 . The shroud is installed outside the hub, rotates with the hub, bears alternating gravity loads, and is used to guide air flow, reduce resistance, and reduce unfavorable loads on the top of the wind tower. Moreover, due to the randomness of wind speed and wind direction, the wind deflector is also subject to changing wind loads. Due to the harsh working environment of the wind turbine, the maintainability of the supporting structure of the shroud is poor, and the maintenance cost is high. Based on the above factors, ensuring the fatigue durability of the shroud support structure is a problem that must be cons...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D11/00
CPCF03D1/04Y02E10/72
Inventor 张国明李会勋
Owner JIANGSU GOLDWIND SCI & TECH CO LTD
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