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Wind power generator and wind power generator set including same

A technology for wind turbines and bases, which is applied in wind turbine combinations, wind turbines, wind energy power generation, etc., can solve problems such as poor cooling effect of wind turbines, and achieve the effects of improving cooling effect, reducing temperature difference, and enhancing cooling efficiency.

Active Publication Date: 2020-09-18
SHANGHAI ELECTRIC WIND POWER GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to overcome the defect that the installation position of the water-cooling core in the prior art is used on the transmission chain of the wind power generator with an elevation angle, which may easily lead to poor cooling effect of the wind power generator, and to provide a wind power generator and its wind turbines

Method used

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  • Wind power generator and wind power generator set including same
  • Wind power generator and wind power generator set including same
  • Wind power generator and wind power generator set including same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] This embodiment provides a wind-driven generator, the wind-driven generator is cooled by air and water, and the inside of the wind-driven generator is cooled by cooling gas, wherein the cooling gas whose temperature is reduced after heat exchange by the air-water cooler is cold air, The cooling gas whose temperature rises after cooling the heat-generating components inside the wind-driven generator is hot air. The windward side and the leeward side involved in this embodiment are both defined according to the airflow loop inside the wind-driven generator. The cooling gas used in this embodiment is air, which is used to cool the heat-generating components inside the wind power generator. In other alternative implementation manners, the cooling gas may also be hydrogen, helium, neon and other gases with cooling effect.

[0070] Such as Figure 1-2 As shown, the wind power generator includes a machine base 2, a water-cooled core 3 and a water-cooled core cover, and the wa...

Embodiment 2

[0103] The structure of the wind power generator in this embodiment is basically the same as that in Embodiment 1, the difference is that the inner rotor 7 in this embodiment is not provided with radial ventilation slots.

[0104] Such as Figure 3-4 As shown, since the inner rotor 7 is not provided with radial ventilation slots, the cooling gas 1 can only cool the surface of the inner rotor 7 by flowing through the air gap 8 .

Embodiment 3

[0106] The structure of the wind power generator in this embodiment is basically the same as that in Embodiment 1, the difference is that the wind power generator in this embodiment also includes an axial flow fan.

[0107] The axial flow fan is installed in the frame 2 and arranged near the non-driven end 42 of the wind-driven generator to increase the wind pressure of the non-driven end 42 of the wind-driven generator and accelerate the cooling gas 1 by the non-driven end 42 of the wind-driven generator. The flow velocity flowing to the driving end 41 of the wind power generator improves the cooling efficiency and enhances the cooling effect.

[0108]The axial flow fan in this embodiment is coaxially connected with the main shaft 23, and the rotation of the main shaft 23 can drive the axial flow fan to rotate synchronously, so that there is no need to design and install a driving structure for driving the rotation of the axial flow fan, which can simplify the interior of the ...

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Abstract

The invention discloses a wind power generator and a wind power generator set including the same. The wind power generator comprises a base, a centrifugal fan, a water-cooling core and a water-coolingcore housing. An included angle is formed between axis of a spindle of the base and the horizontal plane, the centrifugal fan is arranged in the base and is close to a driving end of the wind power generator, the water-cooling core is arranged on the base by way of forming a first angle: an acute angle between a center line of the water-cooling core and the axis of the spindle, the water-coolingcore inclines toward the side of the driving end of the wind power generator, and the water-cooling core housing located on the side of the driving end of the wind power generator and the water-cooling core housing located on the side of a non-driving end of the wind power generator incline toward the water-cooling core, so that a path of cooling gas which is relatively high in temperature flowingto the water-cooling core is reduced effectively. The water-cooling core housing can shorten the path of cooling gas which is relatively high in temperature flowing to the water-cooling core can be shortened, further can shorten a path of cooling gas which is relatively low in temperature flowing into the base effectively and enhances the cooling efficiency in the wind power generator effectively.

Description

technical field [0001] The invention relates to the field of wind power generation, in particular to a wind power generator and a wind power generating set including the wind power generator. Background technique [0002] For large-capacity wind turbines with high-speed gearboxes, they generally adopt a box-type structure. In recent years, with the increase in power demand, the capacity of wind turbines and the diameter of the impellers are also increasing. The power, loss, and heat generation of wind turbines also increase accordingly, so the requirements for the heat dissipation capacity of wind turbines and the accuracy of cooling design also need to be further improved. [0003] Due to the flexibility of the blade, the larger the diameter of the impeller, the greater the vibration displacement of the blade closer to the blade tip, and may even hit the tower. In order to prevent the occurrence of the above situation, when designing the transmission chain of the wind turb...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D9/25F03D80/60
CPCF03D9/25F03D80/60Y02E10/72
Inventor 孙杨路计庄王建勇马文勇陈晓静
Owner SHANGHAI ELECTRIC WIND POWER GRP CO LTD