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Maintenance method, device and system applied to wind turbine labyrinth lubrication channel

A technology for wind turbines and lubricating channels, which is applied in the monitoring of wind turbines, wind turbines, and wind power generation. It can solve problems such as increased friction, failure to reduce pressure and seal, and easy damage to rotating shafts and bearings. , to achieve the effect of improving the operating performance

Active Publication Date: 2019-04-23
BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the rotating shaft or bearing is subjected to external loads, the gap of the labyrinth seal lubrication channel will increase or decrease. If the gap is too large, the pressure reduction and sealing effect will not be achieved. If the gap is too small, contact will easily occur, resulting in increased friction or collision. , the rotating shaft and bearing are easily damaged

Method used

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  • Maintenance method, device and system applied to wind turbine labyrinth lubrication channel
  • Maintenance method, device and system applied to wind turbine labyrinth lubrication channel
  • Maintenance method, device and system applied to wind turbine labyrinth lubrication channel

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Embodiment 1

[0025] figure 2 It is a method flow chart of an embodiment of a method for maintaining a labyrinth lubrication passage of a wind turbine provided by the present invention. The execution body of the method may be a sensor or a monitoring device integrated with a distance detection function. Such as figure 2 As shown, the maintenance method applied to the labyrinth lubrication passage of the wind turbine specifically includes:

[0026] S210: When the wind power generator is running, use the distance detection sensor to detect gap information that characterizes the gap of the labyrinth lubrication channel on the wind power generator.

[0027] During the operation of the wind turbine, the wind turbine receives the influence of the external environment and generates a load, which changes the gap of the labyrinth lubrication channel gap. Such as figure 1 As shown, due to the narrow space of the labyrinth lubrication channel, it is difficult to directly measure the gap of the channel. T...

Embodiment 2

[0042] image 3 It is a structural block diagram of an embodiment of the maintenance device applied to the labyrinth lubrication channel of the wind turbine provided by the present invention. figure 1 Method steps shown. Such as image 3 As shown, the maintenance device applied to the labyrinth lubrication channel of the wind turbine includes: a distance detection sensor 31, a signal converter 32 and a controller 33, wherein:

[0043] The distance detection sensor 31 is arranged on the wind turbine, and is used to detect the gap information that characterizes the labyrinth lubrication channel gap on the wind turbine through the distance detection sensor when the wind turbine is running; the signal converter 32 is connected to the distance detection sensor 31 for use To convert the gap information into gap electrical signals; the controller 33 is connected with the signal converter 32 and the wind turbine to compare the gap electrical signals with the preset gap threshold interval,...

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Abstract

The invention provides a maintenance method, maintenance device and maintenance system applied to labyrinth lubrication channels of a wind turbine generator. The method comprises the following steps: during running of the wind turbine generator, gap information representing gaps of the labyrinth lubrication channels located in the wind turbine generator is detected through distance detection sensors; the gap information is converted to gap electric signals; and each gap electric signal is compared with a preset gap threshold value interval, and if the gap electric signal does not fall into the gap threshold value interval, the wind turbine generator is triggered to adjust a current running state, so that the subsequent gap electric signals fall into the gap threshold value interval. According to the technical scheme of the invention, maintenance for the labyrinth lubrication channels in the wind turbine generator during running is realized, and thus control for the air gaps of the labyrinth lubrication channels within a reasonable range is ensured.

Description

Technical field [0001] The present invention relates to the technical field of wind power, in particular to a maintenance method, device and system applied to a labyrinth lubrication channel of a wind generator. Background technique [0002] The lubrication, sealing and protection system of key components in wind turbines is one of the key technologies that affect the normal operation of wind turbines. Especially in high-power direct-drive generator sets, the rotor shaft and bearings are the key components of wind turbines. Adopt grease lubrication, dynamic seal, and use labyrinth seal to protect the lubrication system. [0003] The function of grease lubrication is to provide sufficient lubricating grease for the rotating shaft and bearings, bearing rolling elements and bearing inner and outer rings, reducing friction and temperature rise. The function of the dynamic seal is to avoid the lack of lubricating oil caused by the leakage of the lubricating grease inside the bearing du...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D80/50F03D80/70F03D17/00
CPCF05B2240/57Y02E10/72
Inventor 孙涛时洪奎周祥祥
Owner BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD