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System and method for deicing wind power blades

A technology of wind power blades and freezing points, applied in the field of wind power blade deicing systems, can solve problems such as difficulties, environmental secondary pollution, equipment failure maintenance, etc., achieve strong removal ability, save time, and reduce impact effects

Active Publication Date: 2021-12-31
XIAN THERMAL POWER RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method needs to be fixedly installed on each blade when the wind turbine is built. After a long period of use, it will cause equipment failure and maintenance difficulties, and there will be a risk of root breakage during long-term operation.
Liquid deicing is mainly to spray the deicing agent on the surface of the blade to reduce the freezing point of the wind turbine blade surface or change the adhesion between the blade surface and the ice layer, but the existing deicing agent will cause secondary pollution to the environment. Corrosion of the surface coating of the blade, do not spray on the surface of the blade in a large area

Method used

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  • System and method for deicing wind power blades
  • System and method for deicing wind power blades
  • System and method for deicing wind power blades

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as figure 1 As shown, a system for deicing wind turbine blades includes a UAV body 1, a deicing cleaning device 2, an ice melting spray device 3 and an adjustable spray boom 4; wherein the UAV body includes a folding arm 101 , propeller 102, support frame 103, battery 104, lower support box 105, front and rear FPV camera 106, infrared camera 107, omnidirectional obstacle avoidance radar 108, positioning unit 109, flight control unit 110 and UAV main structure 111; deicing The cleaning device includes a cleaning liquid storage tank 201, an adjustable deicing cleaning agent pipeline 202 in the spray bar, a nozzle 203, and a plunger pump 204; the ice melting spray device includes a calcium oxide powder storage tank 301, a feeding funnel 302, and a screw transmission shaft 303, motor 304, calcium oxide powder pipeline 305, nozzle 306 and steering gear 307 in the adjustable spray bar.

[0035]Specifically, six folding arms 101 are connected to the main structure 111 of...

Embodiment 1

[0059] The UAV inspects the wind power blades. First, the UAV is lifted to the height of the blades. Through the UAV flight control unit 110, the UAV is hovered to a position 3 meters away from the wind power blades in the horizontal direction, and the infrared camera is turned on. 107 takes all-round shots of the wind power blades, and determines the freezing point of the wind power blades through the real-time images captured by the infrared camera. At this time, the real-time positioning unit 109 is turned on to record the coordinate information of the wind power blades' freezing points, and the drone is controlled to hover over the freezing points of the wind power blades. Near the freezing point, adjust the direction of the steering gear 307, align the powder atomizing nozzle 306 at the freezing point, start the ice-melting spray device 3, and first adjust the calcium oxide powder flow rate to 0.5kg / min on the control handle of the drone , and then turn on the motor, so th...

Embodiment 2

[0062] The UAV inspects the wind power blades. First, the UAV is lifted to the height of the blades. Through the UAV flight control unit 110, the UAV is hovered to a position 3 meters away from the wind power blades in the horizontal direction, and the infrared camera is turned on. 107 takes all-round shots of the wind power blades, and determines the freezing point of the wind power blades through the real-time images captured by the infrared camera. At this time, the real-time positioning unit 109 is turned on to record the coordinate information of the wind power blades' freezing points, and the drone is controlled to hover over the freezing points of the wind power blades. Near the freezing point, adjust the direction of the steering gear 307, align the powder atomizing nozzle 306 at the freezing point, start the ice-melting spray device 3, and first adjust the calcium oxide powder flow rate to 0.8kg / min on the control handle of the drone , and then turn on the motor, so th...

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Abstract

The invention discloses a system and method for deicing wind power blades. The system comprises an unmanned aerial vehicle body, an ice melting spraying device and a deicing cleaning spraying device, wherein the ice melting spraying device and the deicing cleaning spraying device are both arranged at the lower part of the unmanned aerial vehicle body, the ice melting spraying device carries calcium oxide powder and can spray out the calcium oxide powder, cleaning liquid is stored in the deicing cleaning device and can spray out the cleaning agent, and cleaning of the wind power blades is completed through cooperation of the two materials. The unmanned aerial vehicle can be operated flexibly, the safe flight distance between the unmanned aerial vehicle and the wind power blades is guaranteed, and the time is saved and the use amount is reduced for next thorough deicing and cleaning in cooperation with the use of an ice melting agent; and finally, the deicing cleaning agent is sprayed, the cleaning agent adopts a small amount of organic components, secondary pollution to the environment is avoided, the cleaning agent has high removal capacity on ice layers and stains on the surfaces of the wind power blades, and the influence on corrosion of the surface layers of the wind power blades can be reduced.

Description

technical field [0001] The invention belongs to the technical field of wind power generation, and in particular relates to a system and method for deicing wind power blades. Background technique [0002] Wind turbines are usually located in areas prone to freezing, such as high mountains or frontiers. Because the annual average temperature in these areas is low, and it is common for outdoor temperatures to be below zero, the surface of the blades of wind turbines is prone to freezing. In some cases, it will not only affect the aerodynamic performance of the blades and reduce the power generation efficiency of the unit, but will cause a loss of about 20% to 50% of the power generation in areas with severe icing, and will also affect the service life of the blades, which will bring harm to the operating units and personnel. adverse effects. [0003] Common blade anti-icing / deicing technologies include: thermal deicing, mechanical deicing, liquid deicing, etc. Thermal deicing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D80/40
CPCF03D80/40Y02E10/72
Inventor 郭中旭杨嵩郑天帅姚明宇程广文赵瀚辰蔡铭
Owner XIAN THERMAL POWER RES INST CO LTD
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