ANTI-ICING AND DEICING METHOD AND DEVICE FOR HIGH-POWER WIND TURBINE BLADES

Title:

ANTI-ICING AND DEICING METHOD AND DEVICE FOR HIGH-POWER WIND TURBINE BLADES

Document Type and Number:

WIPO Patent Application WO/2016/037476

Kind Code:

A1

Abstract:

A modular gas-heat anti-icing method and device for high-power wind turbine blades. A modular heating system (5) is arranged on the root part of a blade (6), a ventilating duct (19) is paved in the blade (6), a wind deflector (21) is arranged at the end of the ventilating duct (19), and the wind deflector (21) divides the leading edge of the blade into two parts, so that the hot air in the ventilating duct (19) is led to the blade tip and then circulates into the root part of the blade via the rear edge of the blade, making the hot air circulate inside the blade (6) and forming a "blade root to blade tip to blade root" closed loop. The purpose of mainly heating the leading edge of the blade is achieved, so it is ensured that the whole blade will not ice by preventing the leading edge of the blade from icing. Said method and device enable the anti-icing and deicing function of high-power wind turbine blades, increase the generating efficiency of the wind turbine in winter, reduce the overall load and the overall running risk, and can be applied to a wind wheel of a running wind turbine.

Inventors:

ZHAO JIANGANG (CN)
YANG WENTAO (CN)
PENG CHAOYI (CN)
ZENG JINGCHENG (CN)
HOU BINBIN (CN)
JIN JIAOTONG (CN)
LI XIAO (CN)

Application Number:

PCT/CN2015/074500

Publication Date:

March 17, 2016

Filing Date:

March 18, 2015

Export Citation:

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Assignee:

ZHUZHOU TIMES NEW MAT TECH CO (CN)

International Classes:

F03D11/00

Foreign References:

CN102562479A	2012-07-11
CN1727673A	2006-02-01
CN103184984A	2013-07-03
DE19621485A1	1998-03-12
US20110038729A1	2011-02-17

Other References: