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Hot blast type wind power generating set blade deicing device

A technology of wind power generating set and hot air blast, which is applied in the direction of wind power engine, wind power engine monitoring, wind power generation, etc. It can solve the problems of power drop, broken unit, shutdown, etc., and achieve the effect of high practical value

Active Publication Date: 2019-04-12
ZHEJIANG WINDEY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the existing wind power generating set is easy to cause power drop and shut down after the surface of the blade freezes, and the blade may crack, break and the unit collapses, and to provide a hot blast type The wind turbine blade deicing device can effectively deice the blades of the wind turbine to ensure the safe operation of the wind turbine and increase the power generation of the wind turbine

Method used

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  • Hot blast type wind power generating set blade deicing device
  • Hot blast type wind power generating set blade deicing device
  • Hot blast type wind power generating set blade deicing device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] exist figure 1 figure 2 In the shown embodiment 1, a deicing device for blades 23 of a hot blast type wind power generating set 24 includes a heating device and a ventilation duct arranged in the inner cavity of the blade, and the heating device and ventilation duct are arranged in the Inside the blade leading edge cavity 1 (see Figure 4 , the oblique dotted line in the figure is the center line of the blade web), the heating device includes a blower 2 and a heater 3 connected to the outlet end of the blower, the output end of the heater is connected to the air pipe 4, and the air outlet of the air pipe The end wears on the windshield 5 provided in the inner cavity of the blade (see image 3 ), the edge shape of the windshield matches the cross-sectional shape of the blade at the installation position, the distance between the windshield and the root of the blade is greater than one tenth of the total length of the blade, and the air outlet of the air duct The end ...

Embodiment 2

[0030] exist Figure 5 In the shown embodiment 2, a telescopic tube 13 is sleeved inside the air duct, and the outer diameter of the telescopic tube is compatible with the inner diameter of the air duct. The outlet end of the telescopic tube is provided with a sliding support plate 14, and a pulley is fixed on the sliding support plate. Rope 15, a stay rope motor 16 and a stay rope drive wheel 17 are arranged on the windshield, and a reversing pulley 18 is arranged on the blade inner wall away from the windshield, and the stay rope is wound around the stay rope drive wheel and the pulley , the inner wall of the paddle is also provided with a telescopic limit switch; the rope motor and the telescopic limit switch are both connected to the control cabinet. A telescopic tube is set in the air duct, and the length of the telescopic tube protruding from the air duct is adjusted by driving the cord motor, and the telescopic tube is pulled out or retracted from the air duct by the fo...

Embodiment 3

[0032] exist Figure 6 In the shown embodiment 3, the outlet end of the telescopic tube is connected with a guide tube 19, and the guide tube is an elastic corrugated tube, and the outer circumference of the guide tube is fixed with a guide plate 20 (see Figure 7 ), on the guide plate there are four adjusting screws 21 symmetrically centered on the axis of the telescopic tube, one end of the adjusting screw is screwed to the guide plate through a nut hinged with the guide plate, and the other end of the adjusting screw is hinged to a sliding support plate The adjusting motor 22 is connected, and the adjusting motor is connected to the control cabinet. A guide tube is set at the air outlet end of the telescopic tube, and the outlet of the guide tube is deflected in a specific direction (for example, deflected to the windward side of the blade) by controlling and adjusting the number of rotations and the direction of rotation of the motor, so that the hot air can be aligned wit...

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Abstract

The invention discloses a hot blast type wind power generating set blade deicing device. The hot blast type wind power generating set blade deicing device comprises a heating device and a ventilationpipeline. The heating device and the ventilation pipeline are arranged in a blade front edge cavity. The heating device comprises an air blower and a heater. An output end of the heater is connected with an air pipe. An air outlet end of the air pipe penetrates through a wind shield arranged in a blade inner cavity. The blade inner cavity is partitioned into a heating area and a non-heating area by the wind shield. The deicing device further comprises a control cabinet arranged at the root of the blade inner cavity. The heating device is connected with the control cabinet. By means of the hotblast type wind power generating set blade deicing device, blades of a wind power generating set can be effectively deiced, and the running safety and electricity generating capacity of the wind powergenerating set are improved. The hot blast type wind power generating set blade deicing device has a very high practical value.

Description

technical field [0001] The invention relates to the technical field of deicing blades of wind power generators, in particular to a hot blast type blade deicing device for wind power generators. Background technique [0002] Green energy such as wind energy and solar energy is a clean energy that is vigorously developed in the world today. Wind energy can be developed and utilized on a large scale due to its huge reserves and wide application range. The development and utilization of wind energy has far-reaching significance for environmental protection and optimization of traditional energy structure. Today, with the continuous expansion of the construction scale of low-wind speed wind farms, the blades of wind farms in the Yunnan-Guizhou Plateau are mostly affected by freezing. Icing of wind turbine blades is an important reason for large wind turbines to lose a large amount of power generation in areas with high humidity and low temperature. Icing of wind turbine blades w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D80/40F03D80/60F03D80/00F03D17/00
CPCF03D17/00F03D80/00F03D80/40F03D80/60Y02E10/72
Inventor 刘钦东罗勇水许志卢江跃陈中亚
Owner ZHEJIANG WINDEY
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