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Lengthened blade and mounting method of extending section

A technology for extending joints and blades, which is applied in the installation field of extending blades and extending joints, can solve problems such as waste of old blades, and achieve the effects of increasing sweeping area, improving power generation efficiency and increasing strength

Pending Publication Date: 2018-06-22
华润电力风能(汕头潮南)有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, in the prior art method for increasing power generation, dismantling the old blades of the wind power generators in service will inevitably lead to waste of old blades

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  • Lengthened blade and mounting method of extending section
  • Lengthened blade and mounting method of extending section
  • Lengthened blade and mounting method of extending section

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Embodiment Construction

[0027] An embodiment of the present invention provides a method for installing an extended blade and an extended joint, which is used to improve the power generation efficiency of a wind turbine.

[0028] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0029] The terms "first", "second", "third", "fourth" and the like in the description and claims of the present invention and the above ...

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Abstract

The invention discloses a lengthened blade for improving the generating efficiency of a wind power generation unit. The lengthened blade comprises blade parts, bolts, extending sections and a wheel hub; the extending sections are of cylindrical structures; the extending sections reserve spaces for the bolts in the axial direction; the bolts passes the extending sections through the reserved spaces; and the both ends of each bolt are fixed to the corresponding blade part and the wheel hub. The lengths of the blade parts are increased and the strength of the extending sections is improved at thesame time, so that the swept area of the blade parts of the wind power generation unit is increased; and at the rated wind speed, the generating power of wind power generation unit is in positive correlation with the swept area, so that the generating efficiency of the wind power generation unit is improved through the lengthened blade.

Description

technical field [0001] The invention relates to wind power generation equipment, in particular to a method for installing an extended blade and an extended joint. Background technique [0002] The blade is one of the important components of the wind turbine. Under the rated wind speed, the power generated by the wind turbine is positively correlated with the swept area of ​​the blade. Therefore, the blade length can be increased to increase the blade swept area. Generating power. [0003] In the current technology, in order to increase the generating power of the wind power generating set in service, the generally used method is to remove the old blades of the wind power generating set in service, redesign the length of the blades, and install new lengthened blades. [0004] However, in the prior art method for increasing power generation, dismantling the old blades of the wind power generators in service will inevitably lead to waste of the old blades. Contents of the in...

Claims

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Application Information

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IPC IPC(8): F03D1/06F03D13/10
CPCF03D1/0675F03D13/10Y02E10/72
Inventor 黄德华倪孟岩李广顺詹明灼
Owner 华润电力风能(汕头潮南)有限公司
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