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Wind power generator and wind power generating set including the same

A technology for wind turbines and bases, which is applied to 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 strengthening cooling effect.

Active Publication Date: 2022-02-08
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 generating set including the same
  • Wind power generator and wind power generating set including the same
  • Wind power generator and wind power generating set including the 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 wind power generator. The wind power generator includes a machine base, a centrifugal fan, a water cooling core and a water cooling core casing. The axis of the main shaft of the machine base forms an angle with the horizontal plane. The centrifugal fan It is arranged inside the machine base and close to the driving end of the wind turbine. The water cooling core is set on the machine base in such a way that its center line forms an acute angle with the axis of the main shaft. The water cooling core faces the driving end of the wind power generator. One side is inclined, and the water-cooled core casing on the driving end side of the wind turbine and the water-cooling core casing on the non-driving end side of the wind turbine are both inclined towards the water-cooling core, thereby effectively reducing the high temperature cooling gas The path to the water-cooled core, the water-cooled core cover can shorten the path of the high-temperature cooling gas flowing to the water-cooling core, and can also shorten the path of the low-temperature cooling gas flowing to the inside of the frame, effectively strengthening the wind turbine. cooling efficiency.

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 Patents(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