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Heat radiation and ventilation device of mechanical brake of wind generating unit

A technology for wind turbines and mechanical brakes, which is applied to wind turbine components, wind turbines, motors, etc., can solve problems such as high fire risk, and achieve the effects of avoiding fire accidents, reasonable design and simple structure

Active Publication Date: 2015-05-13
VITALONG FIRE SAFETY GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the wind turbine is mechanically braked, the friction between the brake and the brake disc will generate a lot of heat and sparks, and the surface temperature of the brake disc can quickly exceed 700°C, which is very easy to ignite the nearby lubricating oil and other flammable materials, resulting in higher fire risk

Method used

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  • Heat radiation and ventilation device of mechanical brake of wind generating unit
  • Heat radiation and ventilation device of mechanical brake of wind generating unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Such as figure 1 As shown, a mechanical brake heat dissipation and ventilation device for a wind power generating set includes a fan 2 and a heat conduction shield 4. The heat conduction shield 4 is provided with an air inlet and a heat dissipation port, and the fan 2 is installed at the air inlet.

[0014] When in use, the heat conduction shield 4 is installed on the end face of the speed-up box 5 of the wind power generating set, and the brake brake 3 and the brake disc 1 are placed in the heat-conduction shield 4 and installed on the output of the speed-up box 5. The elastic coupling 6 on the shaft passes through the heat conduction shield 4 and is connected with the generator 7, and the fan 2 on the heat conduction shield 4 corresponds to the position of the brake disc 1 .

[0015] When the wind turbine sends out the brake command, the fan work command is started at the same time, the fan 2 rotates to cool down the surface of the brake disc 1, and the cooler air fro...

Embodiment 2

[0018] Such as figure 2 As shown, the difference between this embodiment and Embodiment 1 is that the fan 2 can also be connected with the fire control device 8 of the wind power generating set, the fire control device 8 is connected with the fan main control device 9, and the fan 2 is controlled by the fire control device 8 controls.

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Abstract

The invention discloses a heat radiation and ventilation device of a mechanical brake of a wind generating unit. The heat radiation and ventilation device comprises a fan and a heat stream guidance protection cover; the fan is mounted on the heat stream guidance protection cover; the heat stream guidance protection cover is mounted on the end face of a gearbox of the wind generating unit; and a braking valve and a braking disk of the wind generating unit are arranged in the heat stream guidance protection cover. The heat radiation and ventilation device provided by the invention can be forced to reduce the temperature of the surface of the braking disk of the wind generating unit through ventilation and heat radiation, and can prevent spark generated by the brake from splashing simultaneously, so that the fire accident caused by the mechanical brake can be avoided.

Description

technical field [0001] The invention belongs to the technical field of wind power generators, and in particular relates to a mechanical brake heat dissipation ventilation device for wind power generators. Background technique [0002] Wind energy is a safe and reliable green energy, but also an energy with low energy density and poor stability. Different wind turbines have certain range requirements for wind speed. During the normal operation of the wind turbine, emergency stop braking is required when the wind speed is higher or lower than the design range. When a wind turbine breaks down and needs to be repaired, it also needs to be shut down. [0003] At present, the mechanical braking device of the wind power generator is usually installed on the output shaft of the speed increasing box, and the output shaft of the speed increasing box is connected with the generator through an elastic coupling. The gate is correspondingly installed on the end face of the gearbox. Wh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D11/00F04D27/00
Inventor 汪映标张宗勤吴明军李伟
Owner VITALONG FIRE SAFETY GRP