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Sectional wind turbine blade and installation method thereof

A fan blade and segmented technology, which is applied in the field of segmented fan blades and their installation, can solve problems such as the connection of segmented blades that have not yet been seen, and achieve the effects of simple structure, guaranteed aerodynamic shape, and simple installation procedures

Inactive Publication Date: 2012-07-11
GUODIAN UNITED POWER TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is no technical report on segmented blade connection using T-bolt connection.

Method used

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  • Sectional wind turbine blade and installation method thereof
  • Sectional wind turbine blade and installation method thereof
  • Sectional wind turbine blade and installation method thereof

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Embodiment Construction

[0030] In order to better illustrate the purpose, technical solutions and advantages of the present invention, the present invention will be further described in detail in combination with specific embodiments and accompanying drawings.

[0031] A segmented fan blade according to the present invention includes at least two blade sections. This embodiment is described by taking the segmented fan blade including two blade sections as an example.

[0032] Such as figure 1 As shown, the segmented fan blade includes two blade parts 1 and 2, and the connection areas 3 of the blade parts 1 and 2 are connected by a plurality of T-bolts. Segmented fan blades are manufactured using segmented molds. After the two segments of blades 1 and 2 are connected, the shape of the blades should be continuous and smooth without affecting its aerodynamic performance.

[0033] In order to ensure the reliability of the T-bolt connection, the connection area of ​​the blade part should have sufficient ...

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Abstract

The invention discloses a sectional wind turbine blade and an installation method thereof. The sectional wind turbine blade comprises at least two blade sections, and connection regions of the adjacent blade sections are connected by a plurality of T-shaped bolts. The installation method for connecting the blade sections includes steps of firstly arranging cylindrical nuts of the T-shaped bolts in girth holes of one blade section, penetrating one ends of stub bolts through axial holes to be connected with the cylindrical nuts, positioning each two adjacent blade sections, pushing the blade section with the stub bolts to the other blade section so as to guarantee that the stub bolts are inserted into the axial holes of the other blade section, inserting the other ends of the stub bolts into semi-cylindrical washers, lock washers and hexagonal nuts sequentially and screwing on the hexagonal nuts by a hollow type hydraulic spanner, so that the sections of the sectional wind turbine blade are connected. The sectional wind turbine blade is simple in structure, fine in connection stability and simple in installation process. Sectional manufacturing, transport and field installation of large wind turbine blades can be realized, and development of the large wind turbine blade technology can be improved.

Description

technical field [0001] The invention relates to the field of wind power generation equipment components-fan blades, in particular to a segmented fan blade and an installation method thereof. Background technique [0002] Wind power is an important clean energy, and its development and utilization has been paid more and more attention. The improvement of blade aerodynamic shape and the increase of blade size are important means to increase the power generation of wind turbines. Therefore, the design and manufacture of large blades is a trend in the development of wind power technology. However, due to the wide distribution and remote location of the wind field, the transportation of large wind turbine blades is very difficult and costly, and the solution of building a simple factory building near the wind field to manufacture blades is not easy to realize. These constraints have become the development of large blade technology. obstacle. In this case, segmental manufacturin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D11/00
CPCY02E10/722F03D1/0675F05B2240/302Y02E10/72Y02P70/50
Inventor 白宏伟代海涛秦明张林中刘伟超闫文娟赵静
Owner GUODIAN UNITED POWER TECH
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